Home / 14,268.52-19,691.30-7,981

Finding the Fourth Proportional to 14,268.52, 19,691.30 and 7,981

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Solution

The fourth proportional to 14,268.52, 19,691.30 and 7,981 is: 11,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.52 : 19,691.30 = 7,981 : x
  2. Step 2: Convert to fraction form
    14,268.52/19,691.30 = 7,981/x
  3. Step 3: Cross multiply
    14,268.52x = 19,691.30 × 7,981
  4. Step 4: Simplify right side
    14,268.52x = 157,156,265.30
  5. Step 5: Solve for x
    x = 157,156,265.30/14,268.52
  6. Step 6: Final answer
    x = 11,014.20

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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.