Home / 13,764.45-18,997.97-9,049.17

Finding the Fourth Proportional to 13,764.45, 18,997.97 and 9,049.17

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Solution

The fourth proportional to 13,764.45, 18,997.97 and 9,049.17 is: 12,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.45 : 18,997.97 = 9,049.17 : x
  2. Step 2: Convert to fraction form
    13,764.45/18,997.97 = 9,049.17/x
  3. Step 3: Cross multiply
    13,764.45x = 18,997.97 × 9,049.17
  4. Step 4: Simplify right side
    13,764.45x = 171,915,860.18
  5. Step 5: Solve for x
    x = 171,915,860.18/13,764.45
  6. Step 6: Final answer
    x = 12,489.85

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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.