Home / 11,911.62-16,437.69-6,876.66

Finding the Fourth Proportional to 11,911.62, 16,437.69 and 6,876.66

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Solution

The fourth proportional to 11,911.62, 16,437.69 and 6,876.66 is: 9,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.62 : 16,437.69 = 6,876.66 : x
  2. Step 2: Convert to fraction form
    11,911.62/16,437.69 = 6,876.66/x
  3. Step 3: Cross multiply
    11,911.62x = 16,437.69 × 6,876.66
  4. Step 4: Simplify right side
    11,911.62x = 113,036,405.32
  5. Step 5: Solve for x
    x = 113,036,405.32/11,911.62
  6. Step 6: Final answer
    x = 9,489.59

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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.