Home / 8,756.92-13,135.38-2,838.78

Finding the Fourth Proportional to 8,756.92, 13,135.38 and 2,838.78

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Solution

The fourth proportional to 8,756.92, 13,135.38 and 2,838.78 is: 4,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.92 : 13,135.38 = 2,838.78 : x
  2. Step 2: Convert to fraction form
    8,756.92/13,135.38 = 2,838.78/x
  3. Step 3: Cross multiply
    8,756.92x = 13,135.38 × 2,838.78
  4. Step 4: Simplify right side
    8,756.92x = 37,288,454.04
  5. Step 5: Solve for x
    x = 37,288,454.04/8,756.92
  6. Step 6: Final answer
    x = 4,258.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.