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Finding the Fourth Proportional to 8,164.76, 11,267.36 and 4,438.76

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Solution

The fourth proportional to 8,164.76, 11,267.36 and 4,438.76 is: 6,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,164.76 : 11,267.36 = 4,438.76 : x
  2. Step 2: Convert to fraction form
    8,164.76/11,267.36 = 4,438.76/x
  3. Step 3: Cross multiply
    8,164.76x = 11,267.36 × 4,438.76
  4. Step 4: Simplify right side
    8,164.76x = 50,013,106.87
  5. Step 5: Solve for x
    x = 50,013,106.87/8,164.76
  6. Step 6: Final answer
    x = 6,125.48

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Find fourth proportional to 4,082.38, 5,633.68 and 2,219.38
Half scale
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Double scale
Find fourth proportional to 8,165.76, 11,268.74 and 4,439.76
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.