Home / 13,104.36-18,083.78-7,514.92

Finding the Fourth Proportional to 13,104.36, 18,083.78 and 7,514.92

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Solution

The fourth proportional to 13,104.36, 18,083.78 and 7,514.92 is: 10,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.36 : 18,083.78 = 7,514.92 : x
  2. Step 2: Convert to fraction form
    13,104.36/18,083.78 = 7,514.92/x
  3. Step 3: Cross multiply
    13,104.36x = 18,083.78 × 7,514.92
  4. Step 4: Simplify right side
    13,104.36x = 135,898,160.00
  5. Step 5: Solve for x
    x = 135,898,160.00/13,104.36
  6. Step 6: Final answer
    x = 10,370.45

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Half scale
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Double scale
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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.