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Finding the Fourth Proportional to 8,251.72, 12,348.35 and 5,133.22

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Solution

The fourth proportional to 8,251.72, 12,348.35 and 5,133.22 is: 7,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.72 : 12,348.35 = 5,133.22 : x
  2. Step 2: Convert to fraction form
    8,251.72/12,348.35 = 5,133.22/x
  3. Step 3: Cross multiply
    8,251.72x = 12,348.35 × 5,133.22
  4. Step 4: Simplify right side
    8,251.72x = 63,386,829.36
  5. Step 5: Solve for x
    x = 63,386,829.36/8,251.72
  6. Step 6: Final answer
    x = 7,681.65

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