Home / 8,725.29-13,089.14-2,800.78

Finding the Fourth Proportional to 8,725.29, 13,089.14 and 2,800.78

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Solution

The fourth proportional to 8,725.29, 13,089.14 and 2,800.78 is: 4,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.29 : 13,089.14 = 2,800.78 : x
  2. Step 2: Convert to fraction form
    8,725.29/13,089.14 = 2,800.78/x
  3. Step 3: Cross multiply
    8,725.29x = 13,089.14 × 2,800.78
  4. Step 4: Simplify right side
    8,725.29x = 36,659,722.08
  5. Step 5: Solve for x
    x = 36,659,722.08/8,725.29
  6. Step 6: Final answer
    x = 4,201.55

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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.