Home / 11,918.51-17,859.54-6,372.65

Finding the Fourth Proportional to 11,918.51, 17,859.54 and 6,372.65

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Solution

The fourth proportional to 11,918.51, 17,859.54 and 6,372.65 is: 9,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.51 : 17,859.54 = 6,372.65 : x
  2. Step 2: Convert to fraction form
    11,918.51/17,859.54 = 6,372.65/x
  3. Step 3: Cross multiply
    11,918.51x = 17,859.54 × 6,372.65
  4. Step 4: Simplify right side
    11,918.51x = 113,812,508.28
  5. Step 5: Solve for x
    x = 113,812,508.28/11,918.51
  6. Step 6: Final answer
    x = 9,549.22

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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.