Home / 10,545.35-15,841.08-7,789.73

Finding the Fourth Proportional to 10,545.35, 15,841.08 and 7,789.73

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Solution

The fourth proportional to 10,545.35, 15,841.08 and 7,789.73 is: 11,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.35 : 15,841.08 = 7,789.73 : x
  2. Step 2: Convert to fraction form
    10,545.35/15,841.08 = 7,789.73/x
  3. Step 3: Cross multiply
    10,545.35x = 15,841.08 × 7,789.73
  4. Step 4: Simplify right side
    10,545.35x = 123,397,656.90
  5. Step 5: Solve for x
    x = 123,397,656.90/10,545.35
  6. Step 6: Final answer
    x = 11,701.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.