Home / 13,545.31-18,691.66-7,575.95

Finding the Fourth Proportional to 13,545.31, 18,691.66 and 7,575.95

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Solution

The fourth proportional to 13,545.31, 18,691.66 and 7,575.95 is: 10,454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.31 : 18,691.66 = 7,575.95 : x
  2. Step 2: Convert to fraction form
    13,545.31/18,691.66 = 7,575.95/x
  3. Step 3: Cross multiply
    13,545.31x = 18,691.66 × 7,575.95
  4. Step 4: Simplify right side
    13,545.31x = 141,607,081.58
  5. Step 5: Solve for x
    x = 141,607,081.58/13,545.31
  6. Step 6: Final answer
    x = 10,454.33

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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.