Home / 7,938.39-11,912.96-3,259.24

Finding the Fourth Proportional to 7,938.39, 11,912.96 and 3,259.24

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Solution

The fourth proportional to 7,938.39, 11,912.96 and 3,259.24 is: 4,891.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.39 : 11,912.96 = 3,259.24 : x
  2. Step 2: Convert to fraction form
    7,938.39/11,912.96 = 3,259.24/x
  3. Step 3: Cross multiply
    7,938.39x = 11,912.96 × 3,259.24
  4. Step 4: Simplify right side
    7,938.39x = 38,827,195.75
  5. Step 5: Solve for x
    x = 38,827,195.75/7,938.39
  6. Step 6: Final answer
    x = 4,891.07

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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.