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Finding the Fourth Proportional to 7,963.96, 10,988.34 and 4,820.08

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Solution

The fourth proportional to 7,963.96, 10,988.34 and 4,820.08 is: 6,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.96 : 10,988.34 = 4,820.08 : x
  2. Step 2: Convert to fraction form
    7,963.96/10,988.34 = 4,820.08/x
  3. Step 3: Cross multiply
    7,963.96x = 10,988.34 × 4,820.08
  4. Step 4: Simplify right side
    7,963.96x = 52,964,677.87
  5. Step 5: Solve for x
    x = 52,964,677.87/7,963.96
  6. Step 6: Final answer
    x = 6,650.55

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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.