Home / 13,626.28-20,447.30-5,728.17

Finding the Fourth Proportional to 13,626.28, 20,447.30 and 5,728.17

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Solution

The fourth proportional to 13,626.28, 20,447.30 and 5,728.17 is: 8,595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.28 : 20,447.30 = 5,728.17 : x
  2. Step 2: Convert to fraction form
    13,626.28/20,447.30 = 5,728.17/x
  3. Step 3: Cross multiply
    13,626.28x = 20,447.30 × 5,728.17
  4. Step 4: Simplify right side
    13,626.28x = 117,125,479.56
  5. Step 5: Solve for x
    x = 117,125,479.56/13,626.28
  6. Step 6: Final answer
    x = 8,595.56

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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.