Home / 12,163.14-16,781.27-9,602.79

Finding the Fourth Proportional to 12,163.14, 16,781.27 and 9,602.79

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Solution

The fourth proportional to 12,163.14, 16,781.27 and 9,602.79 is: 13,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.14 : 16,781.27 = 9,602.79 : x
  2. Step 2: Convert to fraction form
    12,163.14/16,781.27 = 9,602.79/x
  3. Step 3: Cross multiply
    12,163.14x = 16,781.27 × 9,602.79
  4. Step 4: Simplify right side
    12,163.14x = 161,146,963.73
  5. Step 5: Solve for x
    x = 161,146,963.73/12,163.14
  6. Step 6: Final answer
    x = 13,248.80

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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.