Home / 12,234.40-18,351.60-10,158.55

Finding the Fourth Proportional to 12,234.40, 18,351.60 and 10,158.55

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Solution

The fourth proportional to 12,234.40, 18,351.60 and 10,158.55 is: 15,237.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,234.40 : 18,351.60 = 10,158.55 : x
  2. Step 2: Convert to fraction form
    12,234.40/18,351.60 = 10,158.55/x
  3. Step 3: Cross multiply
    12,234.40x = 18,351.60 × 10,158.55
  4. Step 4: Simplify right side
    12,234.40x = 186,425,646.18
  5. Step 5: Solve for x
    x = 186,425,646.18/12,234.40
  6. Step 6: Final answer
    x = 15,237.83

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Similar ratio
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1.5x scale

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.