Home / 13,220.53-18,244.56-7,251.85

Finding the Fourth Proportional to 13,220.53, 18,244.56 and 7,251.85

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Solution

The fourth proportional to 13,220.53, 18,244.56 and 7,251.85 is: 10,007.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.53 : 18,244.56 = 7,251.85 : x
  2. Step 2: Convert to fraction form
    13,220.53/18,244.56 = 7,251.85/x
  3. Step 3: Cross multiply
    13,220.53x = 18,244.56 × 7,251.85
  4. Step 4: Simplify right side
    13,220.53x = 132,306,812.44
  5. Step 5: Solve for x
    x = 132,306,812.44/13,220.53
  6. Step 6: Final answer
    x = 10,007.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.