Home / 13,641.71-20,456.60-6,883.14

Finding the Fourth Proportional to 13,641.71, 20,456.60 and 6,883.14

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Solution

The fourth proportional to 13,641.71, 20,456.60 and 6,883.14 is: 10,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.71 : 20,456.60 = 6,883.14 : x
  2. Step 2: Convert to fraction form
    13,641.71/20,456.60 = 6,883.14/x
  3. Step 3: Cross multiply
    13,641.71x = 20,456.60 × 6,883.14
  4. Step 4: Simplify right side
    13,641.71x = 140,805,505.03
  5. Step 5: Solve for x
    x = 140,805,505.03/13,641.71
  6. Step 6: Final answer
    x = 10,321.69

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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.