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Finding the Fourth Proportional to 8,190.38, 11,302.73 and 4,464.38

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Solution

The fourth proportional to 8,190.38, 11,302.73 and 4,464.38 is: 6,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.38 : 11,302.73 = 4,464.38 : x
  2. Step 2: Convert to fraction form
    8,190.38/11,302.73 = 4,464.38/x
  3. Step 3: Cross multiply
    8,190.38x = 11,302.73 × 4,464.38
  4. Step 4: Simplify right side
    8,190.38x = 50,459,602.92
  5. Step 5: Solve for x
    x = 50,459,602.92/8,190.38
  6. Step 6: Final answer
    x = 6,160.84

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Find fourth proportional to 4,095.19, 5,651.36 and 2,232.19
Half scale
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Double scale
Find fourth proportional to 8,191.38, 11,304.11 and 4,465.38
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.