Home / 13,704-18,929.67-11,025.31

Finding the Fourth Proportional to 13,704, 18,929.67 and 11,025.31

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Solution

The fourth proportional to 13,704, 18,929.67 and 11,025.31 is: 15,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704 : 18,929.67 = 11,025.31 : x
  2. Step 2: Convert to fraction form
    13,704/18,929.67 = 11,025.31/x
  3. Step 3: Cross multiply
    13,704x = 18,929.67 × 11,025.31
  4. Step 4: Simplify right side
    13,704x = 208,705,432.62
  5. Step 5: Solve for x
    x = 208,705,432.62/13,704
  6. Step 6: Final answer
    x = 15,229.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.