Home / 8,371.34-12,563.04-3,988.70

Finding the Fourth Proportional to 8,371.34, 12,563.04 and 3,988.70

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Solution

The fourth proportional to 8,371.34, 12,563.04 and 3,988.70 is: 5,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.34 : 12,563.04 = 3,988.70 : x
  2. Step 2: Convert to fraction form
    8,371.34/12,563.04 = 3,988.70/x
  3. Step 3: Cross multiply
    8,371.34x = 12,563.04 × 3,988.70
  4. Step 4: Simplify right side
    8,371.34x = 50,110,197.65
  5. Step 5: Solve for x
    x = 50,110,197.65/8,371.34
  6. Step 6: Final answer
    x = 5,985.92

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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.