Home / 19,844.19-27,386.21-13,118.15

Finding the Fourth Proportional to 19,844.19, 27,386.21 and 13,118.15

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Solution

The fourth proportional to 19,844.19, 27,386.21 and 13,118.15 is: 18,103.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,844.19 : 27,386.21 = 13,118.15 : x
  2. Step 2: Convert to fraction form
    19,844.19/27,386.21 = 13,118.15/x
  3. Step 3: Cross multiply
    19,844.19x = 27,386.21 × 13,118.15
  4. Step 4: Simplify right side
    19,844.19x = 359,256,511.97
  5. Step 5: Solve for x
    x = 359,256,511.97/19,844.19
  6. Step 6: Final answer
    x = 18,103.86

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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.