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Finding the Fourth Proportional to 8,747.66, 12,039.02 and 8,039.54

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Solution

The fourth proportional to 8,747.66, 12,039.02 and 8,039.54 is: 11,064.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.66 : 12,039.02 = 8,039.54 : x
  2. Step 2: Convert to fraction form
    8,747.66/12,039.02 = 8,039.54/x
  3. Step 3: Cross multiply
    8,747.66x = 12,039.02 × 8,039.54
  4. Step 4: Simplify right side
    8,747.66x = 96,788,182.85
  5. Step 5: Solve for x
    x = 96,788,182.85/8,747.66
  6. Step 6: Final answer
    x = 11,064.47

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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.