Home / 8,427.87-11,627.05-5,238.90

Finding the Fourth Proportional to 8,427.87, 11,627.05 and 5,238.90

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Solution

The fourth proportional to 8,427.87, 11,627.05 and 5,238.90 is: 7,227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.87 : 11,627.05 = 5,238.90 : x
  2. Step 2: Convert to fraction form
    8,427.87/11,627.05 = 5,238.90/x
  3. Step 3: Cross multiply
    8,427.87x = 11,627.05 × 5,238.90
  4. Step 4: Simplify right side
    8,427.87x = 60,912,952.25
  5. Step 5: Solve for x
    x = 60,912,952.25/8,427.87
  6. Step 6: Final answer
    x = 7,227.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.