Home / 8,739.28-13,108.89-3,545.14

Finding the Fourth Proportional to 8,739.28, 13,108.89 and 3,545.14

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Solution

The fourth proportional to 8,739.28, 13,108.89 and 3,545.14 is: 5,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.28 : 13,108.89 = 3,545.14 : x
  2. Step 2: Convert to fraction form
    8,739.28/13,108.89 = 3,545.14/x
  3. Step 3: Cross multiply
    8,739.28x = 13,108.89 × 3,545.14
  4. Step 4: Simplify right side
    8,739.28x = 46,472,850.29
  5. Step 5: Solve for x
    x = 46,472,850.29/8,739.28
  6. Step 6: Final answer
    x = 5,317.70

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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.