Home / 13,432.80-20,168.40-7,600.80

Finding the Fourth Proportional to 13,432.80, 20,168.40 and 7,600.80

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Solution

The fourth proportional to 13,432.80, 20,168.40 and 7,600.80 is: 11,412.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.80 : 20,168.40 = 7,600.80 : x
  2. Step 2: Convert to fraction form
    13,432.80/20,168.40 = 7,600.80/x
  3. Step 3: Cross multiply
    13,432.80x = 20,168.40 × 7,600.80
  4. Step 4: Simplify right side
    13,432.80x = 153,295,974.72
  5. Step 5: Solve for x
    x = 153,295,974.72/13,432.80
  6. Step 6: Final answer
    x = 11,412.06

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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.