Home / 12,755.18-17,603.79-7,167.26

Finding the Fourth Proportional to 12,755.18, 17,603.79 and 7,167.26

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Solution

The fourth proportional to 12,755.18, 17,603.79 and 7,167.26 is: 9,891.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.18 : 17,603.79 = 7,167.26 : x
  2. Step 2: Convert to fraction form
    12,755.18/17,603.79 = 7,167.26/x
  3. Step 3: Cross multiply
    12,755.18x = 17,603.79 × 7,167.26
  4. Step 4: Simplify right side
    12,755.18x = 126,170,939.92
  5. Step 5: Solve for x
    x = 126,170,939.92/12,755.18
  6. Step 6: Final answer
    x = 9,891.74

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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.