Home / 12,641.67-18,962.96-4,743.39

Finding the Fourth Proportional to 12,641.67, 18,962.96 and 4,743.39

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Solution

The fourth proportional to 12,641.67, 18,962.96 and 4,743.39 is: 7,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.67 : 18,962.96 = 4,743.39 : x
  2. Step 2: Convert to fraction form
    12,641.67/18,962.96 = 4,743.39/x
  3. Step 3: Cross multiply
    12,641.67x = 18,962.96 × 4,743.39
  4. Step 4: Simplify right side
    12,641.67x = 89,948,691.12
  5. Step 5: Solve for x
    x = 89,948,691.12/12,641.67
  6. Step 6: Final answer
    x = 7,115.25

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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.