Home / 19,974.08-27,565.13-11,478.95

Finding the Fourth Proportional to 19,974.08, 27,565.13 and 11,478.95

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Solution

The fourth proportional to 19,974.08, 27,565.13 and 11,478.95 is: 15,841.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.08 : 27,565.13 = 11,478.95 : x
  2. Step 2: Convert to fraction form
    19,974.08/27,565.13 = 11,478.95/x
  3. Step 3: Cross multiply
    19,974.08x = 27,565.13 × 11,478.95
  4. Step 4: Simplify right side
    19,974.08x = 316,418,760.53
  5. Step 5: Solve for x
    x = 316,418,760.53/19,974.08
  6. Step 6: Final answer
    x = 15,841.47

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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.