Home / 11,269.20-15,545.16-7,070.16

Finding the Fourth Proportional to 11,269.20, 15,545.16 and 7,070.16

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Solution

The fourth proportional to 11,269.20, 15,545.16 and 7,070.16 is: 9,752.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.20 : 15,545.16 = 7,070.16 : x
  2. Step 2: Convert to fraction form
    11,269.20/15,545.16 = 7,070.16/x
  3. Step 3: Cross multiply
    11,269.20x = 15,545.16 × 7,070.16
  4. Step 4: Simplify right side
    11,269.20x = 109,906,768.43
  5. Step 5: Solve for x
    x = 109,906,768.43/11,269.20
  6. Step 6: Final answer
    x = 9,752.85

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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.