Home / 7,512.56-11,245.20-5,158.78

Finding the Fourth Proportional to 7,512.56, 11,245.20 and 5,158.78

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Solution

The fourth proportional to 7,512.56, 11,245.20 and 5,158.78 is: 7,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.56 : 11,245.20 = 5,158.78 : x
  2. Step 2: Convert to fraction form
    7,512.56/11,245.20 = 5,158.78/x
  3. Step 3: Cross multiply
    7,512.56x = 11,245.20 × 5,158.78
  4. Step 4: Simplify right side
    7,512.56x = 58,011,512.86
  5. Step 5: Solve for x
    x = 58,011,512.86/7,512.56
  6. Step 6: Final answer
    x = 7,721.94

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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.