Home / 12,541.73-18,819.90-4,751.15

Finding the Fourth Proportional to 12,541.73, 18,819.90 and 4,751.15

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Solution

The fourth proportional to 12,541.73, 18,819.90 and 4,751.15 is: 7,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,541.73 : 18,819.90 = 4,751.15 : x
  2. Step 2: Convert to fraction form
    12,541.73/18,819.90 = 4,751.15/x
  3. Step 3: Cross multiply
    12,541.73x = 18,819.90 × 4,751.15
  4. Step 4: Simplify right side
    12,541.73x = 89,416,073.79
  5. Step 5: Solve for x
    x = 89,416,073.79/12,541.73
  6. Step 6: Final answer
    x = 7,129.49

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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.