Home / 12,359.55-18,534.33-7,672.62

Finding the Fourth Proportional to 12,359.55, 18,534.33 and 7,672.62

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Solution

The fourth proportional to 12,359.55, 18,534.33 and 7,672.62 is: 11,505.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.55 : 18,534.33 = 7,672.62 : x
  2. Step 2: Convert to fraction form
    12,359.55/18,534.33 = 7,672.62/x
  3. Step 3: Cross multiply
    12,359.55x = 18,534.33 × 7,672.62
  4. Step 4: Simplify right side
    12,359.55x = 142,206,871.04
  5. Step 5: Solve for x
    x = 142,206,871.04/12,359.55
  6. Step 6: Final answer
    x = 11,505.83

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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.