Home / 18,397.28-25,387.76-10,013.60

Finding the Fourth Proportional to 18,397.28, 25,387.76 and 10,013.60

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Solution

The fourth proportional to 18,397.28, 25,387.76 and 10,013.60 is: 13,818.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.28 : 25,387.76 = 10,013.60 : x
  2. Step 2: Convert to fraction form
    18,397.28/25,387.76 = 10,013.60/x
  3. Step 3: Cross multiply
    18,397.28x = 25,387.76 × 10,013.60
  4. Step 4: Simplify right side
    18,397.28x = 254,222,873.54
  5. Step 5: Solve for x
    x = 254,222,873.54/18,397.28
  6. Step 6: Final answer
    x = 13,818.50

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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.