Home / 13,560.32-20,340.50-3,699.60

Finding the Fourth Proportional to 13,560.32, 20,340.50 and 3,699.60

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Solution

The fourth proportional to 13,560.32, 20,340.50 and 3,699.60 is: 5,549.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.32 : 20,340.50 = 3,699.60 : x
  2. Step 2: Convert to fraction form
    13,560.32/20,340.50 = 3,699.60/x
  3. Step 3: Cross multiply
    13,560.32x = 20,340.50 × 3,699.60
  4. Step 4: Simplify right side
    13,560.32x = 75,251,713.80
  5. Step 5: Solve for x
    x = 75,251,713.80/13,560.32
  6. Step 6: Final answer
    x = 5,549.41

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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.