Home / 9,135.18-12,584.97-7,531.38

Finding the Fourth Proportional to 9,135.18, 12,584.97 and 7,531.38

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Solution

The fourth proportional to 9,135.18, 12,584.97 and 7,531.38 is: 10,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.18 : 12,584.97 = 7,531.38 : x
  2. Step 2: Convert to fraction form
    9,135.18/12,584.97 = 7,531.38/x
  3. Step 3: Cross multiply
    9,135.18x = 12,584.97 × 7,531.38
  4. Step 4: Simplify right side
    9,135.18x = 94,782,191.36
  5. Step 5: Solve for x
    x = 94,782,191.36/9,135.18
  6. Step 6: Final answer
    x = 10,375.51

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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.