Home / 19,863.40-27,409.86-10,910.44

Finding the Fourth Proportional to 19,863.40, 27,409.86 and 10,910.44

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Solution

The fourth proportional to 19,863.40, 27,409.86 and 10,910.44 is: 15,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.40 : 27,409.86 = 10,910.44 : x
  2. Step 2: Convert to fraction form
    19,863.40/27,409.86 = 10,910.44/x
  3. Step 3: Cross multiply
    19,863.40x = 27,409.86 × 10,910.44
  4. Step 4: Simplify right side
    19,863.40x = 299,053,632.94
  5. Step 5: Solve for x
    x = 299,053,632.94/19,863.40
  6. Step 6: Final answer
    x = 15,055.51

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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.