Home / 16,961.20-23,406.12-9,407.49

Finding the Fourth Proportional to 16,961.20, 23,406.12 and 9,407.49

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Solution

The fourth proportional to 16,961.20, 23,406.12 and 9,407.49 is: 12,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,961.20 : 23,406.12 = 9,407.49 : x
  2. Step 2: Convert to fraction form
    16,961.20/23,406.12 = 9,407.49/x
  3. Step 3: Cross multiply
    16,961.20x = 23,406.12 × 9,407.49
  4. Step 4: Simplify right side
    16,961.20x = 220,192,839.84
  5. Step 5: Solve for x
    x = 220,192,839.84/16,961.20
  6. Step 6: Final answer
    x = 12,982.15

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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.