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Finding the Fourth Proportional to 8,078.79, 11,146 and 5,095.38

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Solution

The fourth proportional to 8,078.79, 11,146 and 5,095.38 is: 7,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.79 : 11,146 = 5,095.38 : x
  2. Step 2: Convert to fraction form
    8,078.79/11,146 = 5,095.38/x
  3. Step 3: Cross multiply
    8,078.79x = 11,146 × 5,095.38
  4. Step 4: Simplify right side
    8,078.79x = 56,793,105.48
  5. Step 5: Solve for x
    x = 56,793,105.48/8,078.79
  6. Step 6: Final answer
    x = 7,029.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.