Home / 8,963.20-13,443.85-2,390.05

Finding the Fourth Proportional to 8,963.20, 13,443.85 and 2,390.05

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Solution

The fourth proportional to 8,963.20, 13,443.85 and 2,390.05 is: 3,584.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.20 : 13,443.85 = 2,390.05 : x
  2. Step 2: Convert to fraction form
    8,963.20/13,443.85 = 2,390.05/x
  3. Step 3: Cross multiply
    8,963.20x = 13,443.85 × 2,390.05
  4. Step 4: Simplify right side
    8,963.20x = 32,131,434.11
  5. Step 5: Solve for x
    x = 32,131,434.11/8,963.20
  6. Step 6: Final answer
    x = 3,584.82

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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.