Home / 19,882.60-27,438.72-11,386.04

Finding the Fourth Proportional to 19,882.60, 27,438.72 and 11,386.04

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Solution

The fourth proportional to 19,882.60, 27,438.72 and 11,386.04 is: 15,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.60 : 27,438.72 = 11,386.04 : x
  2. Step 2: Convert to fraction form
    19,882.60/27,438.72 = 11,386.04/x
  3. Step 3: Cross multiply
    19,882.60x = 27,438.72 × 11,386.04
  4. Step 4: Simplify right side
    19,882.60x = 312,418,363.47
  5. Step 5: Solve for x
    x = 312,418,363.47/19,882.60
  6. Step 6: Final answer
    x = 15,713.15

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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.