Home / 8,252.89-12,373.85-2,987.21

Finding the Fourth Proportional to 8,252.89, 12,373.85 and 2,987.21

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Solution

The fourth proportional to 8,252.89, 12,373.85 and 2,987.21 is: 4,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,252.89 : 12,373.85 = 2,987.21 : x
  2. Step 2: Convert to fraction form
    8,252.89/12,373.85 = 2,987.21/x
  3. Step 3: Cross multiply
    8,252.89x = 12,373.85 × 2,987.21
  4. Step 4: Simplify right side
    8,252.89x = 36,963,326.86
  5. Step 5: Solve for x
    x = 36,963,326.86/8,252.89
  6. Step 6: Final answer
    x = 4,478.84

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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.