Home / 8,508.43-12,740.77-5,211.53

Finding the Fourth Proportional to 8,508.43, 12,740.77 and 5,211.53

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Solution

The fourth proportional to 8,508.43, 12,740.77 and 5,211.53 is: 7,803.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.43 : 12,740.77 = 5,211.53 : x
  2. Step 2: Convert to fraction form
    8,508.43/12,740.77 = 5,211.53/x
  3. Step 3: Cross multiply
    8,508.43x = 12,740.77 × 5,211.53
  4. Step 4: Simplify right side
    8,508.43x = 66,398,905.08
  5. Step 5: Solve for x
    x = 66,398,905.08/8,508.43
  6. Step 6: Final answer
    x = 7,803.90

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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.