Home / 14,904.95-20,569.20-8,190.75

Finding the Fourth Proportional to 14,904.95, 20,569.20 and 8,190.75

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Solution

The fourth proportional to 14,904.95, 20,569.20 and 8,190.75 is: 11,303.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,904.95 : 20,569.20 = 8,190.75 : x
  2. Step 2: Convert to fraction form
    14,904.95/20,569.20 = 8,190.75/x
  3. Step 3: Cross multiply
    14,904.95x = 20,569.20 × 8,190.75
  4. Step 4: Simplify right side
    14,904.95x = 168,477,174.90
  5. Step 5: Solve for x
    x = 168,477,174.90/14,904.95
  6. Step 6: Final answer
    x = 11,303.44

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Half scale
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Double scale
Find fourth proportional to 14,905.95, 20,570.58 and 8,191.75
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.