Home / 12,141.36-18,213.12-4,350.24

Finding the Fourth Proportional to 12,141.36, 18,213.12 and 4,350.24

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Solution

The fourth proportional to 12,141.36, 18,213.12 and 4,350.24 is: 6,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.36 : 18,213.12 = 4,350.24 : x
  2. Step 2: Convert to fraction form
    12,141.36/18,213.12 = 4,350.24/x
  3. Step 3: Cross multiply
    12,141.36x = 18,213.12 × 4,350.24
  4. Step 4: Simplify right side
    12,141.36x = 79,231,443.15
  5. Step 5: Solve for x
    x = 79,231,443.15/12,141.36
  6. Step 6: Final answer
    x = 6,525.75

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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.