Home / 19,664.43-27,135.99-10,711.38

Finding the Fourth Proportional to 19,664.43, 27,135.99 and 10,711.38

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Solution

The fourth proportional to 19,664.43, 27,135.99 and 10,711.38 is: 14,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.43 : 27,135.99 = 10,711.38 : x
  2. Step 2: Convert to fraction form
    19,664.43/27,135.99 = 10,711.38/x
  3. Step 3: Cross multiply
    19,664.43x = 27,135.99 × 10,711.38
  4. Step 4: Simplify right side
    19,664.43x = 290,663,900.57
  5. Step 5: Solve for x
    x = 290,663,900.57/19,664.43
  6. Step 6: Final answer
    x = 14,781.20

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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.