Home / 11,726.20-16,181.66-6,420.92

Finding the Fourth Proportional to 11,726.20, 16,181.66 and 6,420.92

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Solution

The fourth proportional to 11,726.20, 16,181.66 and 6,420.92 is: 8,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.20 : 16,181.66 = 6,420.92 : x
  2. Step 2: Convert to fraction form
    11,726.20/16,181.66 = 6,420.92/x
  3. Step 3: Cross multiply
    11,726.20x = 16,181.66 × 6,420.92
  4. Step 4: Simplify right side
    11,726.20x = 103,901,144.33
  5. Step 5: Solve for x
    x = 103,901,144.33/11,726.20
  6. Step 6: Final answer
    x = 8,860.60

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1.5x scale

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.