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Finding the Fourth Proportional to 8,383.32, 12,568.68 and 4,868.28

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Solution

The fourth proportional to 8,383.32, 12,568.68 and 4,868.28 is: 7,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383.32 : 12,568.68 = 4,868.28 : x
  2. Step 2: Convert to fraction form
    8,383.32/12,568.68 = 4,868.28/x
  3. Step 3: Cross multiply
    8,383.32x = 12,568.68 × 4,868.28
  4. Step 4: Simplify right side
    8,383.32x = 61,187,853.47
  5. Step 5: Solve for x
    x = 61,187,853.47/8,383.32
  6. Step 6: Final answer
    x = 7,298.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.