Home / 15,729.03-21,679.38-10,414.62

Finding the Fourth Proportional to 15,729.03, 21,679.38 and 10,414.62

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Solution

The fourth proportional to 15,729.03, 21,679.38 and 10,414.62 is: 14,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,729.03 : 21,679.38 = 10,414.62 : x
  2. Step 2: Convert to fraction form
    15,729.03/21,679.38 = 10,414.62/x
  3. Step 3: Cross multiply
    15,729.03x = 21,679.38 × 10,414.62
  4. Step 4: Simplify right side
    15,729.03x = 225,782,504.54
  5. Step 5: Solve for x
    x = 225,782,504.54/15,729.03
  6. Step 6: Final answer
    x = 14,354.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.