Home / 11,520.98-17,265.23-9,170.53

Finding the Fourth Proportional to 11,520.98, 17,265.23 and 9,170.53

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Solution

The fourth proportional to 11,520.98, 17,265.23 and 9,170.53 is: 13,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.98 : 17,265.23 = 9,170.53 : x
  2. Step 2: Convert to fraction form
    11,520.98/17,265.23 = 9,170.53/x
  3. Step 3: Cross multiply
    11,520.98x = 17,265.23 × 9,170.53
  4. Step 4: Simplify right side
    11,520.98x = 158,331,220.66
  5. Step 5: Solve for x
    x = 158,331,220.66/11,520.98
  6. Step 6: Final answer
    x = 13,742.87

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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.