Home / 12,202.40-18,306.60-3,437.20

Finding the Fourth Proportional to 12,202.40, 18,306.60 and 3,437.20

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Solution

The fourth proportional to 12,202.40, 18,306.60 and 3,437.20 is: 5,156.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.40 : 18,306.60 = 3,437.20 : x
  2. Step 2: Convert to fraction form
    12,202.40/18,306.60 = 3,437.20/x
  3. Step 3: Cross multiply
    12,202.40x = 18,306.60 × 3,437.20
  4. Step 4: Simplify right side
    12,202.40x = 62,923,445.52
  5. Step 5: Solve for x
    x = 62,923,445.52/12,202.40
  6. Step 6: Final answer
    x = 5,156.65

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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.