Home / 18,387.92-25,375.38-10,004.42

Finding the Fourth Proportional to 18,387.92, 25,375.38 and 10,004.42

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Solution

The fourth proportional to 18,387.92, 25,375.38 and 10,004.42 is: 13,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.92 : 25,375.38 = 10,004.42 : x
  2. Step 2: Convert to fraction form
    18,387.92/25,375.38 = 10,004.42/x
  3. Step 3: Cross multiply
    18,387.92x = 25,375.38 × 10,004.42
  4. Step 4: Simplify right side
    18,387.92x = 253,865,959.18
  5. Step 5: Solve for x
    x = 253,865,959.18/18,387.92
  6. Step 6: Final answer
    x = 13,806.13

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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.