Home / 12,311.40-18,467.10-12,092.70

Finding the Fourth Proportional to 12,311.40, 18,467.10 and 12,092.70

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Solution

The fourth proportional to 12,311.40, 18,467.10 and 12,092.70 is: 18,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.40 : 18,467.10 = 12,092.70 : x
  2. Step 2: Convert to fraction form
    12,311.40/18,467.10 = 12,092.70/x
  3. Step 3: Cross multiply
    12,311.40x = 18,467.10 × 12,092.70
  4. Step 4: Simplify right side
    12,311.40x = 223,317,100.17
  5. Step 5: Solve for x
    x = 223,317,100.17/12,311.40
  6. Step 6: Final answer
    x = 18,139.05

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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.