Home / 26,758.35-40,136.31-12,708.09

Finding the Fourth Proportional to 26,758.35, 40,136.31 and 12,708.09

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Solution

The fourth proportional to 26,758.35, 40,136.31 and 12,708.09 is: 19,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,758.35 : 40,136.31 = 12,708.09 : x
  2. Step 2: Convert to fraction form
    26,758.35/40,136.31 = 12,708.09/x
  3. Step 3: Cross multiply
    26,758.35x = 40,136.31 × 12,708.09
  4. Step 4: Simplify right side
    26,758.35x = 510,055,839.75
  5. Step 5: Solve for x
    x = 510,055,839.75/26,758.35
  6. Step 6: Final answer
    x = 19,061.56

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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.