Home / 18,785.86-25,924.17-10,402.18

Finding the Fourth Proportional to 18,785.86, 25,924.17 and 10,402.18

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Solution

The fourth proportional to 18,785.86, 25,924.17 and 10,402.18 is: 14,354.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.86 : 25,924.17 = 10,402.18 : x
  2. Step 2: Convert to fraction form
    18,785.86/25,924.17 = 10,402.18/x
  3. Step 3: Cross multiply
    18,785.86x = 25,924.17 × 10,402.18
  4. Step 4: Simplify right side
    18,785.86x = 269,667,882.69
  5. Step 5: Solve for x
    x = 269,667,882.69/18,785.86
  6. Step 6: Final answer
    x = 14,354.83

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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.