Home / 8,998.13-12,419.66-6,131.61

Finding the Fourth Proportional to 8,998.13, 12,419.66 and 6,131.61

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Solution

The fourth proportional to 8,998.13, 12,419.66 and 6,131.61 is: 8,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.13 : 12,419.66 = 6,131.61 : x
  2. Step 2: Convert to fraction form
    8,998.13/12,419.66 = 6,131.61/x
  3. Step 3: Cross multiply
    8,998.13x = 12,419.66 × 6,131.61
  4. Step 4: Simplify right side
    8,998.13x = 76,152,526.78
  5. Step 5: Solve for x
    x = 76,152,526.78/8,998.13
  6. Step 6: Final answer
    x = 8,463.15

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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.