Home / 12,118.22-18,151.81-5,549.93

Finding the Fourth Proportional to 12,118.22, 18,151.81 and 5,549.93

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Solution

The fourth proportional to 12,118.22, 18,151.81 and 5,549.93 is: 8,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.22 : 18,151.81 = 5,549.93 : x
  2. Step 2: Convert to fraction form
    12,118.22/18,151.81 = 5,549.93/x
  3. Step 3: Cross multiply
    12,118.22x = 18,151.81 × 5,549.93
  4. Step 4: Simplify right side
    12,118.22x = 100,741,156.36
  5. Step 5: Solve for x
    x = 100,741,156.36/12,118.22
  6. Step 6: Final answer
    x = 8,313.20

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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.