Home / 13,183.89-18,189.24-7,514.55

Finding the Fourth Proportional to 13,183.89, 18,189.24 and 7,514.55

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Solution

The fourth proportional to 13,183.89, 18,189.24 and 7,514.55 is: 10,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.89 : 18,189.24 = 7,514.55 : x
  2. Step 2: Convert to fraction form
    13,183.89/18,189.24 = 7,514.55/x
  3. Step 3: Cross multiply
    13,183.89x = 18,189.24 × 7,514.55
  4. Step 4: Simplify right side
    13,183.89x = 136,683,924.30
  5. Step 5: Solve for x
    x = 136,683,924.30/13,183.89
  6. Step 6: Final answer
    x = 10,367.50

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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.