Home / 8,517.39-12,766.58-6,430.62

Finding the Fourth Proportional to 8,517.39, 12,766.58 and 6,430.62

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Solution

The fourth proportional to 8,517.39, 12,766.58 and 6,430.62 is: 9,638.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.39 : 12,766.58 = 6,430.62 : x
  2. Step 2: Convert to fraction form
    8,517.39/12,766.58 = 6,430.62/x
  3. Step 3: Cross multiply
    8,517.39x = 12,766.58 × 6,430.62
  4. Step 4: Simplify right side
    8,517.39x = 82,097,064.52
  5. Step 5: Solve for x
    x = 82,097,064.52/8,517.39
  6. Step 6: Final answer
    x = 9,638.76

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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.