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Finding the Fourth Proportional to 7,876.92, 10,875.66 and 4,893.96

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Solution

The fourth proportional to 7,876.92, 10,875.66 and 4,893.96 is: 6,757.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.92 : 10,875.66 = 4,893.96 : x
  2. Step 2: Convert to fraction form
    7,876.92/10,875.66 = 4,893.96/x
  3. Step 3: Cross multiply
    7,876.92x = 10,875.66 × 4,893.96
  4. Step 4: Simplify right side
    7,876.92x = 53,225,045.01
  5. Step 5: Solve for x
    x = 53,225,045.01/7,876.92
  6. Step 6: Final answer
    x = 6,757.09

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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.