Home / 19,965.52-27,551.88-11,012.42

Finding the Fourth Proportional to 19,965.52, 27,551.88 and 11,012.42

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Solution

The fourth proportional to 19,965.52, 27,551.88 and 11,012.42 is: 15,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.52 : 27,551.88 = 11,012.42 : x
  2. Step 2: Convert to fraction form
    19,965.52/27,551.88 = 11,012.42/x
  3. Step 3: Cross multiply
    19,965.52x = 27,551.88 × 11,012.42
  4. Step 4: Simplify right side
    19,965.52x = 303,412,943.23
  5. Step 5: Solve for x
    x = 303,412,943.23/19,965.52
  6. Step 6: Final answer
    x = 15,196.85

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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.