Home / 10,238.40-15,356.88-3,997.26

Finding the Fourth Proportional to 10,238.40, 15,356.88 and 3,997.26

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Solution

The fourth proportional to 10,238.40, 15,356.88 and 3,997.26 is: 5,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,238.40 : 15,356.88 = 3,997.26 : x
  2. Step 2: Convert to fraction form
    10,238.40/15,356.88 = 3,997.26/x
  3. Step 3: Cross multiply
    10,238.40x = 15,356.88 × 3,997.26
  4. Step 4: Simplify right side
    10,238.40x = 61,385,442.15
  5. Step 5: Solve for x
    x = 61,385,442.15/10,238.40
  6. Step 6: Final answer
    x = 5,995.61

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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.