Home / 13,982.74-21,001.88-8,371.26

Finding the Fourth Proportional to 13,982.74, 21,001.88 and 8,371.26

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Solution

The fourth proportional to 13,982.74, 21,001.88 and 8,371.26 is: 12,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.74 : 21,001.88 = 8,371.26 : x
  2. Step 2: Convert to fraction form
    13,982.74/21,001.88 = 8,371.26/x
  3. Step 3: Cross multiply
    13,982.74x = 21,001.88 × 8,371.26
  4. Step 4: Simplify right side
    13,982.74x = 175,812,218.90
  5. Step 5: Solve for x
    x = 175,812,218.90/13,982.74
  6. Step 6: Final answer
    x = 12,573.52

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1.5x scale

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.