Home / 7,839.98-11,761.11-2,647.34

Finding the Fourth Proportional to 7,839.98, 11,761.11 and 2,647.34

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Solution

The fourth proportional to 7,839.98, 11,761.11 and 2,647.34 is: 3,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.98 : 11,761.11 = 2,647.34 : x
  2. Step 2: Convert to fraction form
    7,839.98/11,761.11 = 2,647.34/x
  3. Step 3: Cross multiply
    7,839.98x = 11,761.11 × 2,647.34
  4. Step 4: Simplify right side
    7,839.98x = 31,135,656.95
  5. Step 5: Solve for x
    x = 31,135,656.95/7,839.98
  6. Step 6: Final answer
    x = 3,971.39

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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.