Home / 15,172.66-22,719.12-12,195.30

Finding the Fourth Proportional to 15,172.66, 22,719.12 and 12,195.30

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Solution

The fourth proportional to 15,172.66, 22,719.12 and 12,195.30 is: 18,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172.66 : 22,719.12 = 12,195.30 : x
  2. Step 2: Convert to fraction form
    15,172.66/22,719.12 = 12,195.30/x
  3. Step 3: Cross multiply
    15,172.66x = 22,719.12 × 12,195.30
  4. Step 4: Simplify right side
    15,172.66x = 277,066,523.60
  5. Step 5: Solve for x
    x = 277,066,523.60/15,172.66
  6. Step 6: Final answer
    x = 18,260.90

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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.