Home / 12,441.52-17,170.92-7,135.30

Finding the Fourth Proportional to 12,441.52, 17,170.92 and 7,135.30

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Solution

The fourth proportional to 12,441.52, 17,170.92 and 7,135.30 is: 9,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.52 : 17,170.92 = 7,135.30 : x
  2. Step 2: Convert to fraction form
    12,441.52/17,170.92 = 7,135.30/x
  3. Step 3: Cross multiply
    12,441.52x = 17,170.92 × 7,135.30
  4. Step 4: Simplify right side
    12,441.52x = 122,519,665.48
  5. Step 5: Solve for x
    x = 122,519,665.48/12,441.52
  6. Step 6: Final answer
    x = 9,847.64

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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.