Home / 11,171.06-16,759.35-7,890.56

Finding the Fourth Proportional to 11,171.06, 16,759.35 and 7,890.56

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Solution

The fourth proportional to 11,171.06, 16,759.35 and 7,890.56 is: 11,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.06 : 16,759.35 = 7,890.56 : x
  2. Step 2: Convert to fraction form
    11,171.06/16,759.35 = 7,890.56/x
  3. Step 3: Cross multiply
    11,171.06x = 16,759.35 × 7,890.56
  4. Step 4: Simplify right side
    11,171.06x = 132,240,656.74
  5. Step 5: Solve for x
    x = 132,240,656.74/11,171.06
  6. Step 6: Final answer
    x = 11,837.79

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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.