Home / 8,469.85-12,701.67-2,921.62

Finding the Fourth Proportional to 8,469.85, 12,701.67 and 2,921.62

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Solution

The fourth proportional to 8,469.85, 12,701.67 and 2,921.62 is: 4,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.85 : 12,701.67 = 2,921.62 : x
  2. Step 2: Convert to fraction form
    8,469.85/12,701.67 = 2,921.62/x
  3. Step 3: Cross multiply
    8,469.85x = 12,701.67 × 2,921.62
  4. Step 4: Simplify right side
    8,469.85x = 37,109,453.11
  5. Step 5: Solve for x
    x = 37,109,453.11/8,469.85
  6. Step 6: Final answer
    x = 4,381.36

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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.