Home / 16,780.67-23,132.84-11,729.15

Finding the Fourth Proportional to 16,780.67, 23,132.84 and 11,729.15

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Solution

The fourth proportional to 16,780.67, 23,132.84 and 11,729.15 is: 16,169.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,780.67 : 23,132.84 = 11,729.15 : x
  2. Step 2: Convert to fraction form
    16,780.67/23,132.84 = 11,729.15/x
  3. Step 3: Cross multiply
    16,780.67x = 23,132.84 × 11,729.15
  4. Step 4: Simplify right side
    16,780.67x = 271,328,658.82
  5. Step 5: Solve for x
    x = 271,328,658.82/16,780.67
  6. Step 6: Final answer
    x = 16,169.12

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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.