Home / 13,412.54-20,116.07-6,747.20

Finding the Fourth Proportional to 13,412.54, 20,116.07 and 6,747.20

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Solution

The fourth proportional to 13,412.54, 20,116.07 and 6,747.20 is: 10,119.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.54 : 20,116.07 = 6,747.20 : x
  2. Step 2: Convert to fraction form
    13,412.54/20,116.07 = 6,747.20/x
  3. Step 3: Cross multiply
    13,412.54x = 20,116.07 × 6,747.20
  4. Step 4: Simplify right side
    13,412.54x = 135,727,132.90
  5. Step 5: Solve for x
    x = 135,727,132.90/13,412.54
  6. Step 6: Final answer
    x = 10,119.42

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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.