Home / 18,294.20-25,247.16-11,129.16

Finding the Fourth Proportional to 18,294.20, 25,247.16 and 11,129.16

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Solution

The fourth proportional to 18,294.20, 25,247.16 and 11,129.16 is: 15,358.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.20 : 25,247.16 = 11,129.16 : x
  2. Step 2: Convert to fraction form
    18,294.20/25,247.16 = 11,129.16/x
  3. Step 3: Cross multiply
    18,294.20x = 25,247.16 × 11,129.16
  4. Step 4: Simplify right side
    18,294.20x = 280,979,683.19
  5. Step 5: Solve for x
    x = 280,979,683.19/18,294.20
  6. Step 6: Final answer
    x = 15,358.95

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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.