Home / 15,142.32-22,714.56-4,761.36

Finding the Fourth Proportional to 15,142.32, 22,714.56 and 4,761.36

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Solution

The fourth proportional to 15,142.32, 22,714.56 and 4,761.36 is: 7,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,142.32 : 22,714.56 = 4,761.36 : x
  2. Step 2: Convert to fraction form
    15,142.32/22,714.56 = 4,761.36/x
  3. Step 3: Cross multiply
    15,142.32x = 22,714.56 × 4,761.36
  4. Step 4: Simplify right side
    15,142.32x = 108,152,197.40
  5. Step 5: Solve for x
    x = 108,152,197.40/15,142.32
  6. Step 6: Final answer
    x = 7,142.38

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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.