Home / 13,918.71-19,208.07-7,631.04

Finding the Fourth Proportional to 13,918.71, 19,208.07 and 7,631.04

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Solution

The fourth proportional to 13,918.71, 19,208.07 and 7,631.04 is: 10,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.71 : 19,208.07 = 7,631.04 : x
  2. Step 2: Convert to fraction form
    13,918.71/19,208.07 = 7,631.04/x
  3. Step 3: Cross multiply
    13,918.71x = 19,208.07 × 7,631.04
  4. Step 4: Simplify right side
    13,918.71x = 146,577,550.49
  5. Step 5: Solve for x
    x = 146,577,550.49/13,918.71
  6. Step 6: Final answer
    x = 10,530.97

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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.