Home / 7,681.88-11,517.51-3,924.49

Finding the Fourth Proportional to 7,681.88, 11,517.51 and 3,924.49

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Solution

The fourth proportional to 7,681.88, 11,517.51 and 3,924.49 is: 5,884.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.88 : 11,517.51 = 3,924.49 : x
  2. Step 2: Convert to fraction form
    7,681.88/11,517.51 = 3,924.49/x
  3. Step 3: Cross multiply
    7,681.88x = 11,517.51 × 3,924.49
  4. Step 4: Simplify right side
    7,681.88x = 45,200,352.82
  5. Step 5: Solve for x
    x = 45,200,352.82/7,681.88
  6. Step 6: Final answer
    x = 5,884.02

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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.