Home / 11,545.02-17,318.19-3,647.78

Finding the Fourth Proportional to 11,545.02, 17,318.19 and 3,647.78

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Solution

The fourth proportional to 11,545.02, 17,318.19 and 3,647.78 is: 5,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.02 : 17,318.19 = 3,647.78 : x
  2. Step 2: Convert to fraction form
    11,545.02/17,318.19 = 3,647.78/x
  3. Step 3: Cross multiply
    11,545.02x = 17,318.19 × 3,647.78
  4. Step 4: Simplify right side
    11,545.02x = 63,172,860.53
  5. Step 5: Solve for x
    x = 63,172,860.53/11,545.02
  6. Step 6: Final answer
    x = 5,471.87

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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.