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Finding the Fourth Proportional to 8,708.49, 12,017.64 and 4,729.56

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Solution

The fourth proportional to 8,708.49, 12,017.64 and 4,729.56 is: 6,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.49 : 12,017.64 = 4,729.56 : x
  2. Step 2: Convert to fraction form
    8,708.49/12,017.64 = 4,729.56/x
  3. Step 3: Cross multiply
    8,708.49x = 12,017.64 × 4,729.56
  4. Step 4: Simplify right side
    8,708.49x = 56,838,149.44
  5. Step 5: Solve for x
    x = 56,838,149.44/8,708.49
  6. Step 6: Final answer
    x = 6,526.75

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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.