Home / 8,811.18-13,217.38-2,971.89

Finding the Fourth Proportional to 8,811.18, 13,217.38 and 2,971.89

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Solution

The fourth proportional to 8,811.18, 13,217.38 and 2,971.89 is: 4,458.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.18 : 13,217.38 = 2,971.89 : x
  2. Step 2: Convert to fraction form
    8,811.18/13,217.38 = 2,971.89/x
  3. Step 3: Cross multiply
    8,811.18x = 13,217.38 × 2,971.89
  4. Step 4: Simplify right side
    8,811.18x = 39,280,592.02
  5. Step 5: Solve for x
    x = 39,280,592.02/8,811.18
  6. Step 6: Final answer
    x = 4,458.04

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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.