Home / 7,359.20-11,031.60-6,581.60

Finding the Fourth Proportional to 7,359.20, 11,031.60 and 6,581.60

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Solution

The fourth proportional to 7,359.20, 11,031.60 and 6,581.60 is: 9,865.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,359.20 : 11,031.60 = 6,581.60 : x
  2. Step 2: Convert to fraction form
    7,359.20/11,031.60 = 6,581.60/x
  3. Step 3: Cross multiply
    7,359.20x = 11,031.60 × 6,581.60
  4. Step 4: Simplify right side
    7,359.20x = 72,605,578.56
  5. Step 5: Solve for x
    x = 72,605,578.56/7,359.20
  6. Step 6: Final answer
    x = 9,865.96

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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.