Home / 18,324.51-27,486.69-5,176.85

Finding the Fourth Proportional to 18,324.51, 27,486.69 and 5,176.85

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Solution

The fourth proportional to 18,324.51, 27,486.69 and 5,176.85 is: 7,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.51 : 27,486.69 = 5,176.85 : x
  2. Step 2: Convert to fraction form
    18,324.51/27,486.69 = 5,176.85/x
  3. Step 3: Cross multiply
    18,324.51x = 27,486.69 × 5,176.85
  4. Step 4: Simplify right side
    18,324.51x = 142,294,343.40
  5. Step 5: Solve for x
    x = 142,294,343.40/18,324.51
  6. Step 6: Final answer
    x = 7,765.25

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.