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Finding the Fourth Proportional to 11,273.77, 15,555 and 6,800.14

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Solution

The fourth proportional to 11,273.77, 15,555 and 6,800.14 is: 9,382.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,273.77 : 15,555 = 6,800.14 : x
  2. Step 2: Convert to fraction form
    11,273.77/15,555 = 6,800.14/x
  3. Step 3: Cross multiply
    11,273.77x = 15,555 × 6,800.14
  4. Step 4: Simplify right side
    11,273.77x = 105,776,177.70
  5. Step 5: Solve for x
    x = 105,776,177.70/11,273.77
  6. Step 6: Final answer
    x = 9,382.50

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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.