Home / 14,121.97-19,489.13-8,534.77

Finding the Fourth Proportional to 14,121.97, 19,489.13 and 8,534.77

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Solution

The fourth proportional to 14,121.97, 19,489.13 and 8,534.77 is: 11,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.97 : 19,489.13 = 8,534.77 : x
  2. Step 2: Convert to fraction form
    14,121.97/19,489.13 = 8,534.77/x
  3. Step 3: Cross multiply
    14,121.97x = 19,489.13 × 8,534.77
  4. Step 4: Simplify right side
    14,121.97x = 166,335,242.05
  5. Step 5: Solve for x
    x = 166,335,242.05/14,121.97
  6. Step 6: Final answer
    x = 11,778.47

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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.