Home / 13,314.92-19,972.26-3,955.03

Finding the Fourth Proportional to 13,314.92, 19,972.26 and 3,955.03

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Solution

The fourth proportional to 13,314.92, 19,972.26 and 3,955.03 is: 5,932.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.92 : 19,972.26 = 3,955.03 : x
  2. Step 2: Convert to fraction form
    13,314.92/19,972.26 = 3,955.03/x
  3. Step 3: Cross multiply
    13,314.92x = 19,972.26 × 3,955.03
  4. Step 4: Simplify right side
    13,314.92x = 78,990,837.54
  5. Step 5: Solve for x
    x = 78,990,837.54/13,314.92
  6. Step 6: Final answer
    x = 5,932.51

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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.