Home / 8,989.42-12,397.06-6,160.90

Finding the Fourth Proportional to 8,989.42, 12,397.06 and 6,160.90

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Solution

The fourth proportional to 8,989.42, 12,397.06 and 6,160.90 is: 8,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.42 : 12,397.06 = 6,160.90 : x
  2. Step 2: Convert to fraction form
    8,989.42/12,397.06 = 6,160.90/x
  3. Step 3: Cross multiply
    8,989.42x = 12,397.06 × 6,160.90
  4. Step 4: Simplify right side
    8,989.42x = 76,377,046.95
  5. Step 5: Solve for x
    x = 76,377,046.95/8,989.42
  6. Step 6: Final answer
    x = 8,496.33

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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.