Home / 19,965.63-27,552.38-11,013.20

Finding the Fourth Proportional to 19,965.63, 27,552.38 and 11,013.20

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Solution

The fourth proportional to 19,965.63, 27,552.38 and 11,013.20 is: 15,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.63 : 27,552.38 = 11,013.20 : x
  2. Step 2: Convert to fraction form
    19,965.63/27,552.38 = 11,013.20/x
  3. Step 3: Cross multiply
    19,965.63x = 27,552.38 × 11,013.20
  4. Step 4: Simplify right side
    19,965.63x = 303,439,871.42
  5. Step 5: Solve for x
    x = 303,439,871.42/19,965.63
  6. Step 6: Final answer
    x = 15,198.11

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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.