Home / 7,926.50-11,891.90-3,308.42

Finding the Fourth Proportional to 7,926.50, 11,891.90 and 3,308.42

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Solution

The fourth proportional to 7,926.50, 11,891.90 and 3,308.42 is: 4,963.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.50 : 11,891.90 = 3,308.42 : x
  2. Step 2: Convert to fraction form
    7,926.50/11,891.90 = 3,308.42/x
  3. Step 3: Cross multiply
    7,926.50x = 11,891.90 × 3,308.42
  4. Step 4: Simplify right side
    7,926.50x = 39,343,399.80
  5. Step 5: Solve for x
    x = 39,343,399.80/7,926.50
  6. Step 6: Final answer
    x = 4,963.53

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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.