Home / 7,147.20-10,695.60-6,232.80

Finding the Fourth Proportional to 7,147.20, 10,695.60 and 6,232.80

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Solution

The fourth proportional to 7,147.20, 10,695.60 and 6,232.80 is: 9,327.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.20 : 10,695.60 = 6,232.80 : x
  2. Step 2: Convert to fraction form
    7,147.20/10,695.60 = 6,232.80/x
  3. Step 3: Cross multiply
    7,147.20x = 10,695.60 × 6,232.80
  4. Step 4: Simplify right side
    7,147.20x = 66,663,535.68
  5. Step 5: Solve for x
    x = 66,663,535.68/7,147.20
  6. Step 6: Final answer
    x = 9,327.22

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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.