Home / 12,220.20-16,872.30-9,034.20

Finding the Fourth Proportional to 12,220.20, 16,872.30 and 9,034.20

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Solution

The fourth proportional to 12,220.20, 16,872.30 and 9,034.20 is: 12,473.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.20 : 16,872.30 = 9,034.20 : x
  2. Step 2: Convert to fraction form
    12,220.20/16,872.30 = 9,034.20/x
  3. Step 3: Cross multiply
    12,220.20x = 16,872.30 × 9,034.20
  4. Step 4: Simplify right side
    12,220.20x = 152,427,732.66
  5. Step 5: Solve for x
    x = 152,427,732.66/12,220.20
  6. Step 6: Final answer
    x = 12,473.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.