Home / 12,721.44-17,552.80-12,301.92

Finding the Fourth Proportional to 12,721.44, 17,552.80 and 12,301.92

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Solution

The fourth proportional to 12,721.44, 17,552.80 and 12,301.92 is: 16,973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.44 : 17,552.80 = 12,301.92 : x
  2. Step 2: Convert to fraction form
    12,721.44/17,552.80 = 12,301.92/x
  3. Step 3: Cross multiply
    12,721.44x = 17,552.80 × 12,301.92
  4. Step 4: Simplify right side
    12,721.44x = 215,933,141.38
  5. Step 5: Solve for x
    x = 215,933,141.38/12,721.44
  6. Step 6: Final answer
    x = 16,973.95

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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.