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Finding the Fourth Proportional to 9,708.87, 13,400.45 and 6,873.29

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Solution

The fourth proportional to 9,708.87, 13,400.45 and 6,873.29 is: 9,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,708.87 : 13,400.45 = 6,873.29 : x
  2. Step 2: Convert to fraction form
    9,708.87/13,400.45 = 6,873.29/x
  3. Step 3: Cross multiply
    9,708.87x = 13,400.45 × 6,873.29
  4. Step 4: Simplify right side
    9,708.87x = 92,105,178.98
  5. Step 5: Solve for x
    x = 92,105,178.98/9,708.87
  6. Step 6: Final answer
    x = 9,486.70

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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.