Home / 11,902.74-16,427.52-6,867.78

Finding the Fourth Proportional to 11,902.74, 16,427.52 and 6,867.78

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Solution

The fourth proportional to 11,902.74, 16,427.52 and 6,867.78 is: 9,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.74 : 16,427.52 = 6,867.78 : x
  2. Step 2: Convert to fraction form
    11,902.74/16,427.52 = 6,867.78/x
  3. Step 3: Cross multiply
    11,902.74x = 16,427.52 × 6,867.78
  4. Step 4: Simplify right side
    11,902.74x = 112,820,593.31
  5. Step 5: Solve for x
    x = 112,820,593.31/11,902.74
  6. Step 6: Final answer
    x = 9,478.54

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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.