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Finding the Fourth Proportional to 11,273.09, 15,557.81 and 6,557.09

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Solution

The fourth proportional to 11,273.09, 15,557.81 and 6,557.09 is: 9,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,273.09 : 15,557.81 = 6,557.09 : x
  2. Step 2: Convert to fraction form
    11,273.09/15,557.81 = 6,557.09/x
  3. Step 3: Cross multiply
    11,273.09x = 15,557.81 × 6,557.09
  4. Step 4: Simplify right side
    11,273.09x = 102,013,849.80
  5. Step 5: Solve for x
    x = 102,013,849.80/11,273.09
  6. Step 6: Final answer
    x = 9,049.33

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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.