Home / 9,110.75-12,572.69-5,132.57

Finding the Fourth Proportional to 9,110.75, 12,572.69 and 5,132.57

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Solution

The fourth proportional to 9,110.75, 12,572.69 and 5,132.57 is: 7,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.75 : 12,572.69 = 5,132.57 : x
  2. Step 2: Convert to fraction form
    9,110.75/12,572.69 = 5,132.57/x
  3. Step 3: Cross multiply
    9,110.75x = 12,572.69 × 5,132.57
  4. Step 4: Simplify right side
    9,110.75x = 64,530,122.99
  5. Step 5: Solve for x
    x = 64,530,122.99/9,110.75
  6. Step 6: Final answer
    x = 7,082.86

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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.