Home / 11,918.13-17,876.40-4,896.31

Finding the Fourth Proportional to 11,918.13, 17,876.40 and 4,896.31

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Solution

The fourth proportional to 11,918.13, 17,876.40 and 4,896.31 is: 7,344.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.13 : 17,876.40 = 4,896.31 : x
  2. Step 2: Convert to fraction form
    11,918.13/17,876.40 = 4,896.31/x
  3. Step 3: Cross multiply
    11,918.13x = 17,876.40 × 4,896.31
  4. Step 4: Simplify right side
    11,918.13x = 87,528,306.70
  5. Step 5: Solve for x
    x = 87,528,306.70/11,918.13
  6. Step 6: Final answer
    x = 7,344.13

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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.