Home / 14,135.28-21,200.76-8,516.04

Finding the Fourth Proportional to 14,135.28, 21,200.76 and 8,516.04

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Solution

The fourth proportional to 14,135.28, 21,200.76 and 8,516.04 is: 12,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.28 : 21,200.76 = 8,516.04 : x
  2. Step 2: Convert to fraction form
    14,135.28/21,200.76 = 8,516.04/x
  3. Step 3: Cross multiply
    14,135.28x = 21,200.76 × 8,516.04
  4. Step 4: Simplify right side
    14,135.28x = 180,546,520.19
  5. Step 5: Solve for x
    x = 180,546,520.19/14,135.28
  6. Step 6: Final answer
    x = 12,772.76

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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.