Home / 8,310.13-12,449.20-6,545.80

Finding the Fourth Proportional to 8,310.13, 12,449.20 and 6,545.80

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Solution

The fourth proportional to 8,310.13, 12,449.20 and 6,545.80 is: 9,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.13 : 12,449.20 = 6,545.80 : x
  2. Step 2: Convert to fraction form
    8,310.13/12,449.20 = 6,545.80/x
  3. Step 3: Cross multiply
    8,310.13x = 12,449.20 × 6,545.80
  4. Step 4: Simplify right side
    8,310.13x = 81,489,973.36
  5. Step 5: Solve for x
    x = 81,489,973.36/8,310.13
  6. Step 6: Final answer
    x = 9,806.10

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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.