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Finding the Fourth Proportional to 7,713.66, 10,644.86 and 4,176.87

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Solution

The fourth proportional to 7,713.66, 10,644.86 and 4,176.87 is: 5,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,713.66 : 10,644.86 = 4,176.87 : x
  2. Step 2: Convert to fraction form
    7,713.66/10,644.86 = 4,176.87/x
  3. Step 3: Cross multiply
    7,713.66x = 10,644.86 × 4,176.87
  4. Step 4: Simplify right side
    7,713.66x = 44,462,175.50
  5. Step 5: Solve for x
    x = 44,462,175.50/7,713.66
  6. Step 6: Final answer
    x = 5,764.08

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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.