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Finding the Fourth Proportional to 8,983.92, 12,396.88 and 5,207.00

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Solution

The fourth proportional to 8,983.92, 12,396.88 and 5,207.00 is: 7,185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.92 : 12,396.88 = 5,207.00 : x
  2. Step 2: Convert to fraction form
    8,983.92/12,396.88 = 5,207.00/x
  3. Step 3: Cross multiply
    8,983.92x = 12,396.88 × 5,207.00
  4. Step 4: Simplify right side
    8,983.92x = 64,550,498.68
  5. Step 5: Solve for x
    x = 64,550,498.68/8,983.92
  6. Step 6: Final answer
    x = 7,185.11

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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.