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Finding the Fourth Proportional to 9,079.76, 12,533.88 and 8,512.28

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Solution

The fourth proportional to 9,079.76, 12,533.88 and 8,512.28 is: 11,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.76 : 12,533.88 = 8,512.28 : x
  2. Step 2: Convert to fraction form
    9,079.76/12,533.88 = 8,512.28/x
  3. Step 3: Cross multiply
    9,079.76x = 12,533.88 × 8,512.28
  4. Step 4: Simplify right side
    9,079.76x = 106,691,833.38
  5. Step 5: Solve for x
    x = 106,691,833.38/9,079.76
  6. Step 6: Final answer
    x = 11,750.52

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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.