Home / 11,221.74-15,488.01-7,027.56

Finding the Fourth Proportional to 11,221.74, 15,488.01 and 7,027.56

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Solution

The fourth proportional to 11,221.74, 15,488.01 and 7,027.56 is: 9,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.74 : 15,488.01 = 7,027.56 : x
  2. Step 2: Convert to fraction form
    11,221.74/15,488.01 = 7,027.56/x
  3. Step 3: Cross multiply
    11,221.74x = 15,488.01 × 7,027.56
  4. Step 4: Simplify right side
    11,221.74x = 108,842,919.56
  5. Step 5: Solve for x
    x = 108,842,919.56/11,221.74
  6. Step 6: Final answer
    x = 9,699.29

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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.