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Finding the Fourth Proportional to 8,652.16, 12,971.22 and 7,960.20

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Solution

The fourth proportional to 8,652.16, 12,971.22 and 7,960.20 is: 11,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.16 : 12,971.22 = 7,960.20 : x
  2. Step 2: Convert to fraction form
    8,652.16/12,971.22 = 7,960.20/x
  3. Step 3: Cross multiply
    8,652.16x = 12,971.22 × 7,960.20
  4. Step 4: Simplify right side
    8,652.16x = 103,253,505.44
  5. Step 5: Solve for x
    x = 103,253,505.44/8,652.16
  6. Step 6: Final answer
    x = 11,933.84

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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.