Home / 12,204.20-18,306.30-9,288.20

Finding the Fourth Proportional to 12,204.20, 18,306.30 and 9,288.20

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Solution

The fourth proportional to 12,204.20, 18,306.30 and 9,288.20 is: 13,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.20 : 18,306.30 = 9,288.20 : x
  2. Step 2: Convert to fraction form
    12,204.20/18,306.30 = 9,288.20/x
  3. Step 3: Cross multiply
    12,204.20x = 18,306.30 × 9,288.20
  4. Step 4: Simplify right side
    12,204.20x = 170,032,575.66
  5. Step 5: Solve for x
    x = 170,032,575.66/12,204.20
  6. Step 6: Final answer
    x = 13,932.30

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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.