Home / 7,943.88-11,915.82-4,679.76

Finding the Fourth Proportional to 7,943.88, 11,915.82 and 4,679.76

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Solution

The fourth proportional to 7,943.88, 11,915.82 and 4,679.76 is: 7,019.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.88 : 11,915.82 = 4,679.76 : x
  2. Step 2: Convert to fraction form
    7,943.88/11,915.82 = 4,679.76/x
  3. Step 3: Cross multiply
    7,943.88x = 11,915.82 × 4,679.76
  4. Step 4: Simplify right side
    7,943.88x = 55,763,177.80
  5. Step 5: Solve for x
    x = 55,763,177.80/7,943.88
  6. Step 6: Final answer
    x = 7,019.64

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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.