Home / 12,531.66-18,780.42-4,736.22

Finding the Fourth Proportional to 12,531.66, 18,780.42 and 4,736.22

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Solution

The fourth proportional to 12,531.66, 18,780.42 and 4,736.22 is: 7,097.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.66 : 18,780.42 = 4,736.22 : x
  2. Step 2: Convert to fraction form
    12,531.66/18,780.42 = 4,736.22/x
  3. Step 3: Cross multiply
    12,531.66x = 18,780.42 × 4,736.22
  4. Step 4: Simplify right side
    12,531.66x = 88,948,200.81
  5. Step 5: Solve for x
    x = 88,948,200.81/12,531.66
  6. Step 6: Final answer
    x = 7,097.88

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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.