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Finding the Fourth Proportional to 8,353.32, 12,531.06 and 2,804.28

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Solution

The fourth proportional to 8,353.32, 12,531.06 and 2,804.28 is: 4,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.32 : 12,531.06 = 2,804.28 : x
  2. Step 2: Convert to fraction form
    8,353.32/12,531.06 = 2,804.28/x
  3. Step 3: Cross multiply
    8,353.32x = 12,531.06 × 2,804.28
  4. Step 4: Simplify right side
    8,353.32x = 35,140,600.94
  5. Step 5: Solve for x
    x = 35,140,600.94/8,353.32
  6. Step 6: Final answer
    x = 4,206.78

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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.