Home / 11,157.78-16,726.68-4,237.14

Finding the Fourth Proportional to 11,157.78, 16,726.68 and 4,237.14

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Solution

The fourth proportional to 11,157.78, 16,726.68 and 4,237.14 is: 6,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.78 : 16,726.68 = 4,237.14 : x
  2. Step 2: Convert to fraction form
    11,157.78/16,726.68 = 4,237.14/x
  3. Step 3: Cross multiply
    11,157.78x = 16,726.68 × 4,237.14
  4. Step 4: Simplify right side
    11,157.78x = 70,873,284.90
  5. Step 5: Solve for x
    x = 70,873,284.90/11,157.78
  6. Step 6: Final answer
    x = 6,351.92

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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.