Home / 13,781.97-20,656.55-9,599.33

Finding the Fourth Proportional to 13,781.97, 20,656.55 and 9,599.33

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Solution

The fourth proportional to 13,781.97, 20,656.55 and 9,599.33 is: 14,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.97 : 20,656.55 = 9,599.33 : x
  2. Step 2: Convert to fraction form
    13,781.97/20,656.55 = 9,599.33/x
  3. Step 3: Cross multiply
    13,781.97x = 20,656.55 × 9,599.33
  4. Step 4: Simplify right side
    13,781.97x = 198,289,040.11
  5. Step 5: Solve for x
    x = 198,289,040.11/13,781.97
  6. Step 6: Final answer
    x = 14,387.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.