Home / 18,287.55-25,236.45-10,221.27

Finding the Fourth Proportional to 18,287.55, 25,236.45 and 10,221.27

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Solution

The fourth proportional to 18,287.55, 25,236.45 and 10,221.27 is: 14,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.55 : 25,236.45 = 10,221.27 : x
  2. Step 2: Convert to fraction form
    18,287.55/25,236.45 = 10,221.27/x
  3. Step 3: Cross multiply
    18,287.55x = 25,236.45 × 10,221.27
  4. Step 4: Simplify right side
    18,287.55x = 257,948,569.29
  5. Step 5: Solve for x
    x = 257,948,569.29/18,287.55
  6. Step 6: Final answer
    x = 14,105.15

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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.