Home / 14,418.96-19,897.56-8,131.92

Finding the Fourth Proportional to 14,418.96, 19,897.56 and 8,131.92

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Solution

The fourth proportional to 14,418.96, 19,897.56 and 8,131.92 is: 11,221.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.96 : 19,897.56 = 8,131.92 : x
  2. Step 2: Convert to fraction form
    14,418.96/19,897.56 = 8,131.92/x
  3. Step 3: Cross multiply
    14,418.96x = 19,897.56 × 8,131.92
  4. Step 4: Simplify right side
    14,418.96x = 161,805,366.12
  5. Step 5: Solve for x
    x = 161,805,366.12/14,418.96
  6. Step 6: Final answer
    x = 11,221.71

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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.