Home / 15,146.48-22,722.60-4,761.20

Finding the Fourth Proportional to 15,146.48, 22,722.60 and 4,761.20

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Solution

The fourth proportional to 15,146.48, 22,722.60 and 4,761.20 is: 7,142.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.48 : 22,722.60 = 4,761.20 : x
  2. Step 2: Convert to fraction form
    15,146.48/22,722.60 = 4,761.20/x
  3. Step 3: Cross multiply
    15,146.48x = 22,722.60 × 4,761.20
  4. Step 4: Simplify right side
    15,146.48x = 108,186,843.12
  5. Step 5: Solve for x
    x = 108,186,843.12/15,146.48
  6. Step 6: Final answer
    x = 7,142.71

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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.