Home / 11,026.89-15,221.78-7,047.09

Finding the Fourth Proportional to 11,026.89, 15,221.78 and 7,047.09

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Solution

The fourth proportional to 11,026.89, 15,221.78 and 7,047.09 is: 9,727.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,026.89 : 15,221.78 = 7,047.09 : x
  2. Step 2: Convert to fraction form
    11,026.89/15,221.78 = 7,047.09/x
  3. Step 3: Cross multiply
    11,026.89x = 15,221.78 × 7,047.09
  4. Step 4: Simplify right side
    11,026.89x = 107,269,253.62
  5. Step 5: Solve for x
    x = 107,269,253.62/11,026.89
  6. Step 6: Final answer
    x = 9,727.97

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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.