Home / 12,158.73-18,186.26-7,467.21

Finding the Fourth Proportional to 12,158.73, 18,186.26 and 7,467.21

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Solution

The fourth proportional to 12,158.73, 18,186.26 and 7,467.21 is: 11,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.73 : 18,186.26 = 7,467.21 : x
  2. Step 2: Convert to fraction form
    12,158.73/18,186.26 = 7,467.21/x
  3. Step 3: Cross multiply
    12,158.73x = 18,186.26 × 7,467.21
  4. Step 4: Simplify right side
    12,158.73x = 135,800,585.20
  5. Step 5: Solve for x
    x = 135,800,585.20/12,158.73
  6. Step 6: Final answer
    x = 11,168.98

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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.