Home / 18,853.28-26,015.24-11,195.36

Finding the Fourth Proportional to 18,853.28, 26,015.24 and 11,195.36

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Solution

The fourth proportional to 18,853.28, 26,015.24 and 11,195.36 is: 15,448.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.28 : 26,015.24 = 11,195.36 : x
  2. Step 2: Convert to fraction form
    18,853.28/26,015.24 = 11,195.36/x
  3. Step 3: Cross multiply
    18,853.28x = 26,015.24 × 11,195.36
  4. Step 4: Simplify right side
    18,853.28x = 291,249,977.29
  5. Step 5: Solve for x
    x = 291,249,977.29/18,853.28
  6. Step 6: Final answer
    x = 15,448.24

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Double scale
Find fourth proportional to 18,854.28, 26,016.62 and 11,196.36
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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.