Home / 19,965.75-27,552.87-11,013.50

Finding the Fourth Proportional to 19,965.75, 27,552.87 and 11,013.50

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Solution

The fourth proportional to 19,965.75, 27,552.87 and 11,013.50 is: 15,198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.75 : 27,552.87 = 11,013.50 : x
  2. Step 2: Convert to fraction form
    19,965.75/27,552.87 = 11,013.50/x
  3. Step 3: Cross multiply
    19,965.75x = 27,552.87 × 11,013.50
  4. Step 4: Simplify right side
    19,965.75x = 303,453,340.91
  5. Step 5: Solve for x
    x = 303,453,340.91/19,965.75
  6. Step 6: Final answer
    x = 15,198.69

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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.