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Finding the Fourth Proportional to 9,156.44, 12,629.44 and 8,851.62

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Solution

The fourth proportional to 9,156.44, 12,629.44 and 8,851.62 is: 12,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.44 : 12,629.44 = 8,851.62 : x
  2. Step 2: Convert to fraction form
    9,156.44/12,629.44 = 8,851.62/x
  3. Step 3: Cross multiply
    9,156.44x = 12,629.44 × 8,851.62
  4. Step 4: Simplify right side
    9,156.44x = 111,791,003.69
  5. Step 5: Solve for x
    x = 111,791,003.69/9,156.44
  6. Step 6: Final answer
    x = 12,209.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.