Home / 13,324.41-18,390.87-8,018.19

Finding the Fourth Proportional to 13,324.41, 18,390.87 and 8,018.19

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Solution

The fourth proportional to 13,324.41, 18,390.87 and 8,018.19 is: 11,067.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.41 : 18,390.87 = 8,018.19 : x
  2. Step 2: Convert to fraction form
    13,324.41/18,390.87 = 8,018.19/x
  3. Step 3: Cross multiply
    13,324.41x = 18,390.87 × 8,018.19
  4. Step 4: Simplify right side
    13,324.41x = 147,461,489.93
  5. Step 5: Solve for x
    x = 147,461,489.93/13,324.41
  6. Step 6: Final answer
    x = 11,067.02

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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.