Home / 12,398.29-18,508.25-10,624.20

Finding the Fourth Proportional to 12,398.29, 18,508.25 and 10,624.20

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Solution

The fourth proportional to 12,398.29, 18,508.25 and 10,624.20 is: 15,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.29 : 18,508.25 = 10,624.20 : x
  2. Step 2: Convert to fraction form
    12,398.29/18,508.25 = 10,624.20/x
  3. Step 3: Cross multiply
    12,398.29x = 18,508.25 × 10,624.20
  4. Step 4: Simplify right side
    12,398.29x = 196,635,349.65
  5. Step 5: Solve for x
    x = 196,635,349.65/12,398.29
  6. Step 6: Final answer
    x = 15,859.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.