Home / 8,517.71-12,778.61-3,588.76

Finding the Fourth Proportional to 8,517.71, 12,778.61 and 3,588.76

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Solution

The fourth proportional to 8,517.71, 12,778.61 and 3,588.76 is: 5,384.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.71 : 12,778.61 = 3,588.76 : x
  2. Step 2: Convert to fraction form
    8,517.71/12,778.61 = 3,588.76/x
  3. Step 3: Cross multiply
    8,517.71x = 12,778.61 × 3,588.76
  4. Step 4: Simplify right side
    8,517.71x = 45,859,310.76
  5. Step 5: Solve for x
    x = 45,859,310.76/8,517.71
  6. Step 6: Final answer
    x = 5,384.00

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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.