Home / 19,817.64-29,727.33-8,129.88

Finding the Fourth Proportional to 19,817.64, 29,727.33 and 8,129.88

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Solution

The fourth proportional to 19,817.64, 29,727.33 and 8,129.88 is: 12,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.64 : 29,727.33 = 8,129.88 : x
  2. Step 2: Convert to fraction form
    19,817.64/29,727.33 = 8,129.88/x
  3. Step 3: Cross multiply
    19,817.64x = 29,727.33 × 8,129.88
  4. Step 4: Simplify right side
    19,817.64x = 241,679,625.62
  5. Step 5: Solve for x
    x = 241,679,625.62/19,817.64
  6. Step 6: Final answer
    x = 12,195.18

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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.