Home / 18,311.70-27,467.55-5,166.30

Finding the Fourth Proportional to 18,311.70, 27,467.55 and 5,166.30

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Solution

The fourth proportional to 18,311.70, 27,467.55 and 5,166.30 is: 7,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.70 : 27,467.55 = 5,166.30 : x
  2. Step 2: Convert to fraction form
    18,311.70/27,467.55 = 5,166.30/x
  3. Step 3: Cross multiply
    18,311.70x = 27,467.55 × 5,166.30
  4. Step 4: Simplify right side
    18,311.70x = 141,905,603.57
  5. Step 5: Solve for x
    x = 141,905,603.57/18,311.70
  6. Step 6: Final answer
    x = 7,749.45

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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.