Home / 19,966.78-27,553.81-11,015.14

Finding the Fourth Proportional to 19,966.78, 27,553.81 and 11,015.14

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Solution

The fourth proportional to 19,966.78, 27,553.81 and 11,015.14 is: 15,200.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.78 : 27,553.81 = 11,015.14 : x
  2. Step 2: Convert to fraction form
    19,966.78/27,553.81 = 11,015.14/x
  3. Step 3: Cross multiply
    19,966.78x = 27,553.81 × 11,015.14
  4. Step 4: Simplify right side
    19,966.78x = 303,508,909.38
  5. Step 5: Solve for x
    x = 303,508,909.38/19,966.78
  6. Step 6: Final answer
    x = 15,200.70

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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.