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Finding the Fourth Proportional to 8,865.12, 12,233.82 and 4,886.22

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Solution

The fourth proportional to 8,865.12, 12,233.82 and 4,886.22 is: 6,742.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.12 : 12,233.82 = 4,886.22 : x
  2. Step 2: Convert to fraction form
    8,865.12/12,233.82 = 4,886.22/x
  3. Step 3: Cross multiply
    8,865.12x = 12,233.82 × 4,886.22
  4. Step 4: Simplify right side
    8,865.12x = 59,777,135.96
  5. Step 5: Solve for x
    x = 59,777,135.96/8,865.12
  6. Step 6: Final answer
    x = 6,742.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.