Home / 11,987.04-16,553.52-11,332.56

Finding the Fourth Proportional to 11,987.04, 16,553.52 and 11,332.56

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Solution

The fourth proportional to 11,987.04, 16,553.52 and 11,332.56 is: 15,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.04 : 16,553.52 = 11,332.56 : x
  2. Step 2: Convert to fraction form
    11,987.04/16,553.52 = 11,332.56/x
  3. Step 3: Cross multiply
    11,987.04x = 16,553.52 × 11,332.56
  4. Step 4: Simplify right side
    11,987.04x = 187,593,758.61
  5. Step 5: Solve for x
    x = 187,593,758.61/11,987.04
  6. Step 6: Final answer
    x = 15,649.71

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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.