Home / 12,204.60-18,306.90-7,271.70

Finding the Fourth Proportional to 12,204.60, 18,306.90 and 7,271.70

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Solution

The fourth proportional to 12,204.60, 18,306.90 and 7,271.70 is: 10,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.60 : 18,306.90 = 7,271.70 : x
  2. Step 2: Convert to fraction form
    12,204.60/18,306.90 = 7,271.70/x
  3. Step 3: Cross multiply
    12,204.60x = 18,306.90 × 7,271.70
  4. Step 4: Simplify right side
    12,204.60x = 133,122,284.73
  5. Step 5: Solve for x
    x = 133,122,284.73/12,204.60
  6. Step 6: Final answer
    x = 10,907.55

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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.