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Finding the Fourth Proportional to 8,456.64, 11,662.56 and 7,044.99

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Solution

The fourth proportional to 8,456.64, 11,662.56 and 7,044.99 is: 9,715.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.64 : 11,662.56 = 7,044.99 : x
  2. Step 2: Convert to fraction form
    8,456.64/11,662.56 = 7,044.99/x
  3. Step 3: Cross multiply
    8,456.64x = 11,662.56 × 7,044.99
  4. Step 4: Simplify right side
    8,456.64x = 82,162,618.57
  5. Step 5: Solve for x
    x = 82,162,618.57/8,456.64
  6. Step 6: Final answer
    x = 9,715.75

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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.