Home / 8,814.50-13,221.79-2,971.16

Finding the Fourth Proportional to 8,814.50, 13,221.79 and 2,971.16

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Solution

The fourth proportional to 8,814.50, 13,221.79 and 2,971.16 is: 4,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.50 : 13,221.79 = 2,971.16 : x
  2. Step 2: Convert to fraction form
    8,814.50/13,221.79 = 2,971.16/x
  3. Step 3: Cross multiply
    8,814.50x = 13,221.79 × 2,971.16
  4. Step 4: Simplify right side
    8,814.50x = 39,283,972.61
  5. Step 5: Solve for x
    x = 39,283,972.61/8,814.50
  6. Step 6: Final answer
    x = 4,456.75

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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.