Home / 12,535.50-18,800.17-5,517.28

Finding the Fourth Proportional to 12,535.50, 18,800.17 and 5,517.28

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Solution

The fourth proportional to 12,535.50, 18,800.17 and 5,517.28 is: 8,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.50 : 18,800.17 = 5,517.28 : x
  2. Step 2: Convert to fraction form
    12,535.50/18,800.17 = 5,517.28/x
  3. Step 3: Cross multiply
    12,535.50x = 18,800.17 × 5,517.28
  4. Step 4: Simplify right side
    12,535.50x = 103,725,801.94
  5. Step 5: Solve for x
    x = 103,725,801.94/12,535.50
  6. Step 6: Final answer
    x = 8,274.56

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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.