Home / 11,839.12-17,757.10-3,518.98

Finding the Fourth Proportional to 11,839.12, 17,757.10 and 3,518.98

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Solution

The fourth proportional to 11,839.12, 17,757.10 and 3,518.98 is: 5,278.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,839.12 : 17,757.10 = 3,518.98 : x
  2. Step 2: Convert to fraction form
    11,839.12/17,757.10 = 3,518.98/x
  3. Step 3: Cross multiply
    11,839.12x = 17,757.10 × 3,518.98
  4. Step 4: Simplify right side
    11,839.12x = 62,486,879.76
  5. Step 5: Solve for x
    x = 62,486,879.76/11,839.12
  6. Step 6: Final answer
    x = 5,278.00

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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.