Home / 12,115.23-18,179.88-5,094.72

Finding the Fourth Proportional to 12,115.23, 18,179.88 and 5,094.72

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Solution

The fourth proportional to 12,115.23, 18,179.88 and 5,094.72 is: 7,645.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.23 : 18,179.88 = 5,094.72 : x
  2. Step 2: Convert to fraction form
    12,115.23/18,179.88 = 5,094.72/x
  3. Step 3: Cross multiply
    12,115.23x = 18,179.88 × 5,094.72
  4. Step 4: Simplify right side
    12,115.23x = 92,621,398.23
  5. Step 5: Solve for x
    x = 92,621,398.23/12,115.23
  6. Step 6: Final answer
    x = 7,645.04

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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.