Home / 15,727.60-21,704.04-9,439.96

Finding the Fourth Proportional to 15,727.60, 21,704.04 and 9,439.96

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Solution

The fourth proportional to 15,727.60, 21,704.04 and 9,439.96 is: 13,027.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.60 : 21,704.04 = 9,439.96 : x
  2. Step 2: Convert to fraction form
    15,727.60/21,704.04 = 9,439.96/x
  3. Step 3: Cross multiply
    15,727.60x = 21,704.04 × 9,439.96
  4. Step 4: Simplify right side
    15,727.60x = 204,885,269.44
  5. Step 5: Solve for x
    x = 204,885,269.44/15,727.60
  6. Step 6: Final answer
    x = 13,027.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.