Home / 13,918.82-19,207.96-7,631.18

Finding the Fourth Proportional to 13,918.82, 19,207.96 and 7,631.18

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Solution

The fourth proportional to 13,918.82, 19,207.96 and 7,631.18 is: 10,531.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.82 : 19,207.96 = 7,631.18 : x
  2. Step 2: Convert to fraction form
    13,918.82/19,207.96 = 7,631.18/x
  3. Step 3: Cross multiply
    13,918.82x = 19,207.96 × 7,631.18
  4. Step 4: Simplify right side
    13,918.82x = 146,579,400.19
  5. Step 5: Solve for x
    x = 146,579,400.19/13,918.82
  6. Step 6: Final answer
    x = 10,531.02

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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.