Home / 8,187.13-12,269.07-6,305.90

Finding the Fourth Proportional to 8,187.13, 12,269.07 and 6,305.90

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Solution

The fourth proportional to 8,187.13, 12,269.07 and 6,305.90 is: 9,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.13 : 12,269.07 = 6,305.90 : x
  2. Step 2: Convert to fraction form
    8,187.13/12,269.07 = 6,305.90/x
  3. Step 3: Cross multiply
    8,187.13x = 12,269.07 × 6,305.90
  4. Step 4: Simplify right side
    8,187.13x = 77,367,543.42
  5. Step 5: Solve for x
    x = 77,367,543.42/8,187.13
  6. Step 6: Final answer
    x = 9,449.90

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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.