Home / 13,136.82-19,713.51-8,757.42

Finding the Fourth Proportional to 13,136.82, 19,713.51 and 8,757.42

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Solution

The fourth proportional to 13,136.82, 19,713.51 and 8,757.42 is: 13,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.82 : 19,713.51 = 8,757.42 : x
  2. Step 2: Convert to fraction form
    13,136.82/19,713.51 = 8,757.42/x
  3. Step 3: Cross multiply
    13,136.82x = 19,713.51 × 8,757.42
  4. Step 4: Simplify right side
    13,136.82x = 172,639,486.74
  5. Step 5: Solve for x
    x = 172,639,486.74/13,136.82
  6. Step 6: Final answer
    x = 13,141.65

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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.