Home / 13,478.72-20,229.44-5,693.12

Finding the Fourth Proportional to 13,478.72, 20,229.44 and 5,693.12

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Solution

The fourth proportional to 13,478.72, 20,229.44 and 5,693.12 is: 8,544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.72 : 20,229.44 = 5,693.12 : x
  2. Step 2: Convert to fraction form
    13,478.72/20,229.44 = 5,693.12/x
  3. Step 3: Cross multiply
    13,478.72x = 20,229.44 × 5,693.12
  4. Step 4: Simplify right side
    13,478.72x = 115,168,629.45
  5. Step 5: Solve for x
    x = 115,168,629.45/13,478.72
  6. Step 6: Final answer
    x = 8,544.48

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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.