Home / 13,086.72-19,631.70-4,324.68

Finding the Fourth Proportional to 13,086.72, 19,631.70 and 4,324.68

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Solution

The fourth proportional to 13,086.72, 19,631.70 and 4,324.68 is: 6,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.72 : 19,631.70 = 4,324.68 : x
  2. Step 2: Convert to fraction form
    13,086.72/19,631.70 = 4,324.68/x
  3. Step 3: Cross multiply
    13,086.72x = 19,631.70 × 4,324.68
  4. Step 4: Simplify right side
    13,086.72x = 84,900,820.36
  5. Step 5: Solve for x
    x = 84,900,820.36/13,086.72
  6. Step 6: Final answer
    x = 6,487.56

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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.