Home / 13,917.92-19,207.94-7,631.51

Finding the Fourth Proportional to 13,917.92, 19,207.94 and 7,631.51

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Solution

The fourth proportional to 13,917.92, 19,207.94 and 7,631.51 is: 10,532.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.92 : 19,207.94 = 7,631.51 : x
  2. Step 2: Convert to fraction form
    13,917.92/19,207.94 = 7,631.51/x
  3. Step 3: Cross multiply
    13,917.92x = 19,207.94 × 7,631.51
  4. Step 4: Simplify right side
    13,917.92x = 146,585,500.01
  5. Step 5: Solve for x
    x = 146,585,500.01/13,917.92
  6. Step 6: Final answer
    x = 10,532.14

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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.