Home / 13,360.32-20,040.71-3,998.16

Finding the Fourth Proportional to 13,360.32, 20,040.71 and 3,998.16

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Solution

The fourth proportional to 13,360.32, 20,040.71 and 3,998.16 is: 5,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.32 : 20,040.71 = 3,998.16 : x
  2. Step 2: Convert to fraction form
    13,360.32/20,040.71 = 3,998.16/x
  3. Step 3: Cross multiply
    13,360.32x = 20,040.71 × 3,998.16
  4. Step 4: Simplify right side
    13,360.32x = 80,125,945.10
  5. Step 5: Solve for x
    x = 80,125,945.10/13,360.32
  6. Step 6: Final answer
    x = 5,997.31

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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.