Home / 11,839.74-17,759.75-3,519.55

Finding the Fourth Proportional to 11,839.74, 17,759.75 and 3,519.55

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Solution

The fourth proportional to 11,839.74, 17,759.75 and 3,519.55 is: 5,279.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,839.74 : 17,759.75 = 3,519.55 : x
  2. Step 2: Convert to fraction form
    11,839.74/17,759.75 = 3,519.55/x
  3. Step 3: Cross multiply
    11,839.74x = 17,759.75 × 3,519.55
  4. Step 4: Simplify right side
    11,839.74x = 62,506,328.11
  5. Step 5: Solve for x
    x = 62,506,328.11/11,839.74
  6. Step 6: Final answer
    x = 5,279.37

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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.