Home / 12,231.05-18,341.78-4,330.51

Finding the Fourth Proportional to 12,231.05, 18,341.78 and 4,330.51

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Solution

The fourth proportional to 12,231.05, 18,341.78 and 4,330.51 is: 6,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.05 : 18,341.78 = 4,330.51 : x
  2. Step 2: Convert to fraction form
    12,231.05/18,341.78 = 4,330.51/x
  3. Step 3: Cross multiply
    12,231.05x = 18,341.78 × 4,330.51
  4. Step 4: Simplify right side
    12,231.05x = 79,429,218.56
  5. Step 5: Solve for x
    x = 79,429,218.56/12,231.05
  6. Step 6: Final answer
    x = 6,494.07

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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.