Home / 8,722.20-13,081.47-2,877.44

Finding the Fourth Proportional to 8,722.20, 13,081.47 and 2,877.44

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Solution

The fourth proportional to 8,722.20, 13,081.47 and 2,877.44 is: 4,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.20 : 13,081.47 = 2,877.44 : x
  2. Step 2: Convert to fraction form
    8,722.20/13,081.47 = 2,877.44/x
  3. Step 3: Cross multiply
    8,722.20x = 13,081.47 × 2,877.44
  4. Step 4: Simplify right side
    8,722.20x = 37,641,145.04
  5. Step 5: Solve for x
    x = 37,641,145.04/8,722.20
  6. Step 6: Final answer
    x = 4,315.56

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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.