Home / 13,358.48-20,041.56-3,999.20

Finding the Fourth Proportional to 13,358.48, 20,041.56 and 3,999.20

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Solution

The fourth proportional to 13,358.48, 20,041.56 and 3,999.20 is: 5,999.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.48 : 20,041.56 = 3,999.20 : x
  2. Step 2: Convert to fraction form
    13,358.48/20,041.56 = 3,999.20/x
  3. Step 3: Cross multiply
    13,358.48x = 20,041.56 × 3,999.20
  4. Step 4: Simplify right side
    13,358.48x = 80,150,206.75
  5. Step 5: Solve for x
    x = 80,150,206.75/13,358.48
  6. Step 6: Final answer
    x = 5,999.95

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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.