Home / 7,938.48-11,907.82-5,472.64

Finding the Fourth Proportional to 7,938.48, 11,907.82 and 5,472.64

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Solution

The fourth proportional to 7,938.48, 11,907.82 and 5,472.64 is: 8,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.48 : 11,907.82 = 5,472.64 : x
  2. Step 2: Convert to fraction form
    7,938.48/11,907.82 = 5,472.64/x
  3. Step 3: Cross multiply
    7,938.48x = 11,907.82 × 5,472.64
  4. Step 4: Simplify right side
    7,938.48x = 65,167,212.04
  5. Step 5: Solve for x
    x = 65,167,212.04/7,938.48
  6. Step 6: Final answer
    x = 8,209.03

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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.