Home / 11,922.86-16,451.62-6,886.28

Finding the Fourth Proportional to 11,922.86, 16,451.62 and 6,886.28

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Solution

The fourth proportional to 11,922.86, 16,451.62 and 6,886.28 is: 9,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.86 : 16,451.62 = 6,886.28 : x
  2. Step 2: Convert to fraction form
    11,922.86/16,451.62 = 6,886.28/x
  3. Step 3: Cross multiply
    11,922.86x = 16,451.62 × 6,886.28
  4. Step 4: Simplify right side
    11,922.86x = 113,290,362.30
  5. Step 5: Solve for x
    x = 113,290,362.30/11,922.86
  6. Step 6: Final answer
    x = 9,501.95

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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.