Home / 11,146.86-16,726.80-4,221.90

Finding the Fourth Proportional to 11,146.86, 16,726.80 and 4,221.90

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Solution

The fourth proportional to 11,146.86, 16,726.80 and 4,221.90 is: 6,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.86 : 16,726.80 = 4,221.90 : x
  2. Step 2: Convert to fraction form
    11,146.86/16,726.80 = 4,221.90/x
  3. Step 3: Cross multiply
    11,146.86x = 16,726.80 × 4,221.90
  4. Step 4: Simplify right side
    11,146.86x = 70,618,876.92
  5. Step 5: Solve for x
    x = 70,618,876.92/11,146.86
  6. Step 6: Final answer
    x = 6,335.32

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1.5x scale

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.