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Finding the Fourth Proportional to 8,728.56, 12,036.28 and 8,044.88

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Solution

The fourth proportional to 8,728.56, 12,036.28 and 8,044.88 is: 11,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.56 : 12,036.28 = 8,044.88 : x
  2. Step 2: Convert to fraction form
    8,728.56/12,036.28 = 8,044.88/x
  3. Step 3: Cross multiply
    8,728.56x = 12,036.28 × 8,044.88
  4. Step 4: Simplify right side
    8,728.56x = 96,830,428.25
  5. Step 5: Solve for x
    x = 96,830,428.25/8,728.56
  6. Step 6: Final answer
    x = 11,093.52

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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.