Home / 12,221.18-16,839.17-8,235.37

Finding the Fourth Proportional to 12,221.18, 16,839.17 and 8,235.37

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Solution

The fourth proportional to 12,221.18, 16,839.17 and 8,235.37 is: 11,347.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.18 : 16,839.17 = 8,235.37 : x
  2. Step 2: Convert to fraction form
    12,221.18/16,839.17 = 8,235.37/x
  3. Step 3: Cross multiply
    12,221.18x = 16,839.17 × 8,235.37
  4. Step 4: Simplify right side
    12,221.18x = 138,676,711.25
  5. Step 5: Solve for x
    x = 138,676,711.25/12,221.18
  6. Step 6: Final answer
    x = 11,347.25

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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.