Home / 11,918.18-17,861.34-6,284.36

Finding the Fourth Proportional to 11,918.18, 17,861.34 and 6,284.36

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Solution

The fourth proportional to 11,918.18, 17,861.34 and 6,284.36 is: 9,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.18 : 17,861.34 = 6,284.36 : x
  2. Step 2: Convert to fraction form
    11,918.18/17,861.34 = 6,284.36/x
  3. Step 3: Cross multiply
    11,918.18x = 17,861.34 × 6,284.36
  4. Step 4: Simplify right side
    11,918.18x = 112,247,001.34
  5. Step 5: Solve for x
    x = 112,247,001.34/11,918.18
  6. Step 6: Final answer
    x = 9,418.14

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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.