Home / 19,864.11-27,411.12-10,911.99

Finding the Fourth Proportional to 19,864.11, 27,411.12 and 10,911.99

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Solution

The fourth proportional to 19,864.11, 27,411.12 and 10,911.99 is: 15,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.11 : 27,411.12 = 10,911.99 : x
  2. Step 2: Convert to fraction form
    19,864.11/27,411.12 = 10,911.99/x
  3. Step 3: Cross multiply
    19,864.11x = 27,411.12 × 10,911.99
  4. Step 4: Simplify right side
    19,864.11x = 299,109,867.33
  5. Step 5: Solve for x
    x = 299,109,867.33/19,864.11
  6. Step 6: Final answer
    x = 15,057.80

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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.