Home / 19,663.78-27,135.97-10,711.26

Finding the Fourth Proportional to 19,663.78, 27,135.97 and 10,711.26

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Solution

The fourth proportional to 19,663.78, 27,135.97 and 10,711.26 is: 14,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.78 : 27,135.97 = 10,711.26 : x
  2. Step 2: Convert to fraction form
    19,663.78/27,135.97 = 10,711.26/x
  3. Step 3: Cross multiply
    19,663.78x = 27,135.97 × 10,711.26
  4. Step 4: Simplify right side
    19,663.78x = 290,660,430.02
  5. Step 5: Solve for x
    x = 290,660,430.02/19,663.78
  6. Step 6: Final answer
    x = 14,781.51

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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.