Home / 13,918.67-19,207.73-7,631.09

Finding the Fourth Proportional to 13,918.67, 19,207.73 and 7,631.09

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Solution

The fourth proportional to 13,918.67, 19,207.73 and 7,631.09 is: 10,530.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.67 : 19,207.73 = 7,631.09 : x
  2. Step 2: Convert to fraction form
    13,918.67/19,207.73 = 7,631.09/x
  3. Step 3: Cross multiply
    13,918.67x = 19,207.73 × 7,631.09
  4. Step 4: Simplify right side
    13,918.67x = 146,575,782.13
  5. Step 5: Solve for x
    x = 146,575,782.13/13,918.67
  6. Step 6: Final answer
    x = 10,530.88

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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.