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Finding the Fourth Proportional to 8,713.85, 12,026.34 and 5,528.79

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Solution

The fourth proportional to 8,713.85, 12,026.34 and 5,528.79 is: 7,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.85 : 12,026.34 = 5,528.79 : x
  2. Step 2: Convert to fraction form
    8,713.85/12,026.34 = 5,528.79/x
  3. Step 3: Cross multiply
    8,713.85x = 12,026.34 × 5,528.79
  4. Step 4: Simplify right side
    8,713.85x = 66,491,108.33
  5. Step 5: Solve for x
    x = 66,491,108.33/8,713.85
  6. Step 6: Final answer
    x = 7,630.51

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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.