Home / 13,767.28-20,643.60-5,446.96

Finding the Fourth Proportional to 13,767.28, 20,643.60 and 5,446.96

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Solution

The fourth proportional to 13,767.28, 20,643.60 and 5,446.96 is: 8,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.28 : 20,643.60 = 5,446.96 : x
  2. Step 2: Convert to fraction form
    13,767.28/20,643.60 = 5,446.96/x
  3. Step 3: Cross multiply
    13,767.28x = 20,643.60 × 5,446.96
  4. Step 4: Simplify right side
    13,767.28x = 112,444,863.46
  5. Step 5: Solve for x
    x = 112,444,863.46/13,767.28
  6. Step 6: Final answer
    x = 8,167.54

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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.