Home / 13,728.44-20,569.12-9,217.04

Finding the Fourth Proportional to 13,728.44, 20,569.12 and 9,217.04

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Solution

The fourth proportional to 13,728.44, 20,569.12 and 9,217.04 is: 13,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.44 : 20,569.12 = 9,217.04 : x
  2. Step 2: Convert to fraction form
    13,728.44/20,569.12 = 9,217.04/x
  3. Step 3: Cross multiply
    13,728.44x = 20,569.12 × 9,217.04
  4. Step 4: Simplify right side
    13,728.44x = 189,586,401.80
  5. Step 5: Solve for x
    x = 189,586,401.80/13,728.44
  6. Step 6: Final answer
    x = 13,809.76

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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.