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Finding the Fourth Proportional to 7,916.76, 10,924.86 and 4,380.12

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Solution

The fourth proportional to 7,916.76, 10,924.86 and 4,380.12 is: 6,044.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.76 : 10,924.86 = 4,380.12 : x
  2. Step 2: Convert to fraction form
    7,916.76/10,924.86 = 4,380.12/x
  3. Step 3: Cross multiply
    7,916.76x = 10,924.86 × 4,380.12
  4. Step 4: Simplify right side
    7,916.76x = 47,852,197.78
  5. Step 5: Solve for x
    x = 47,852,197.78/7,916.76
  6. Step 6: Final answer
    x = 6,044.42

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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.