Home / 8,543.20-12,788.13-6,294.27

Finding the Fourth Proportional to 8,543.20, 12,788.13 and 6,294.27

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Solution

The fourth proportional to 8,543.20, 12,788.13 and 6,294.27 is: 9,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.20 : 12,788.13 = 6,294.27 : x
  2. Step 2: Convert to fraction form
    8,543.20/12,788.13 = 6,294.27/x
  3. Step 3: Cross multiply
    8,543.20x = 12,788.13 × 6,294.27
  4. Step 4: Simplify right side
    8,543.20x = 80,491,943.02
  5. Step 5: Solve for x
    x = 80,491,943.02/8,543.20
  6. Step 6: Final answer
    x = 9,421.76

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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.