Home / 19,786.50-27,305.38-10,954.50

Finding the Fourth Proportional to 19,786.50, 27,305.38 and 10,954.50

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Solution

The fourth proportional to 19,786.50, 27,305.38 and 10,954.50 is: 15,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.50 : 27,305.38 = 10,954.50 : x
  2. Step 2: Convert to fraction form
    19,786.50/27,305.38 = 10,954.50/x
  3. Step 3: Cross multiply
    19,786.50x = 27,305.38 × 10,954.50
  4. Step 4: Simplify right side
    19,786.50x = 299,116,785.21
  5. Step 5: Solve for x
    x = 299,116,785.21/19,786.50
  6. Step 6: Final answer
    x = 15,117.22

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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.