Home / 8,877.25-13,315.88-2,721.25

Finding the Fourth Proportional to 8,877.25, 13,315.88 and 2,721.25

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Solution

The fourth proportional to 8,877.25, 13,315.88 and 2,721.25 is: 4,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.25 : 13,315.88 = 2,721.25 : x
  2. Step 2: Convert to fraction form
    8,877.25/13,315.88 = 2,721.25/x
  3. Step 3: Cross multiply
    8,877.25x = 13,315.88 × 2,721.25
  4. Step 4: Simplify right side
    8,877.25x = 36,235,838.45
  5. Step 5: Solve for x
    x = 36,235,838.45/8,877.25
  6. Step 6: Final answer
    x = 4,081.88

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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.