Home / 13,519.08-20,275.49-3,659.12

Finding the Fourth Proportional to 13,519.08, 20,275.49 and 3,659.12

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Solution

The fourth proportional to 13,519.08, 20,275.49 and 3,659.12 is: 5,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.08 : 20,275.49 = 3,659.12 : x
  2. Step 2: Convert to fraction form
    13,519.08/20,275.49 = 3,659.12/x
  3. Step 3: Cross multiply
    13,519.08x = 20,275.49 × 3,659.12
  4. Step 4: Simplify right side
    13,519.08x = 74,190,538.53
  5. Step 5: Solve for x
    x = 74,190,538.53/13,519.08
  6. Step 6: Final answer
    x = 5,487.84

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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.