Home / 7,132.20-10,676.70-5,188.20

Finding the Fourth Proportional to 7,132.20, 10,676.70 and 5,188.20

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Solution

The fourth proportional to 7,132.20, 10,676.70 and 5,188.20 is: 7,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.20 : 10,676.70 = 5,188.20 : x
  2. Step 2: Convert to fraction form
    7,132.20/10,676.70 = 5,188.20/x
  3. Step 3: Cross multiply
    7,132.20x = 10,676.70 × 5,188.20
  4. Step 4: Simplify right side
    7,132.20x = 55,392,854.94
  5. Step 5: Solve for x
    x = 55,392,854.94/7,132.20
  6. Step 6: Final answer
    x = 7,766.59

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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.