Home / 13,316.62-19,949.18-11,153.81

Finding the Fourth Proportional to 13,316.62, 19,949.18 and 11,153.81

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Solution

The fourth proportional to 13,316.62, 19,949.18 and 11,153.81 is: 16,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.62 : 19,949.18 = 11,153.81 : x
  2. Step 2: Convert to fraction form
    13,316.62/19,949.18 = 11,153.81/x
  3. Step 3: Cross multiply
    13,316.62x = 19,949.18 × 11,153.81
  4. Step 4: Simplify right side
    13,316.62x = 222,509,273.15
  5. Step 5: Solve for x
    x = 222,509,273.15/13,316.62
  6. Step 6: Final answer
    x = 16,709.13

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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.