Home / 12,440.80-17,167.68-6,851.68

Finding the Fourth Proportional to 12,440.80, 17,167.68 and 6,851.68

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Solution

The fourth proportional to 12,440.80, 17,167.68 and 6,851.68 is: 9,454.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.80 : 17,167.68 = 6,851.68 : x
  2. Step 2: Convert to fraction form
    12,440.80/17,167.68 = 6,851.68/x
  3. Step 3: Cross multiply
    12,440.80x = 17,167.68 × 6,851.68
  4. Step 4: Simplify right side
    12,440.80x = 117,627,449.70
  5. Step 5: Solve for x
    x = 117,627,449.70/12,440.80
  6. Step 6: Final answer
    x = 9,454.97

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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.