Home / 16,839.20-23,237.16-9,387.20

Finding the Fourth Proportional to 16,839.20, 23,237.16 and 9,387.20

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Solution

The fourth proportional to 16,839.20, 23,237.16 and 9,387.20 is: 12,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,839.20 : 23,237.16 = 9,387.20 : x
  2. Step 2: Convert to fraction form
    16,839.20/23,237.16 = 9,387.20/x
  3. Step 3: Cross multiply
    16,839.20x = 23,237.16 × 9,387.20
  4. Step 4: Simplify right side
    16,839.20x = 218,131,868.35
  5. Step 5: Solve for x
    x = 218,131,868.35/16,839.20
  6. Step 6: Final answer
    x = 12,953.81

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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.