Home / 11,007.82-15,212.64-9,015.22

Finding the Fourth Proportional to 11,007.82, 15,212.64 and 9,015.22

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Solution

The fourth proportional to 11,007.82, 15,212.64 and 9,015.22 is: 12,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.82 : 15,212.64 = 9,015.22 : x
  2. Step 2: Convert to fraction form
    11,007.82/15,212.64 = 9,015.22/x
  3. Step 3: Cross multiply
    11,007.82x = 15,212.64 × 9,015.22
  4. Step 4: Simplify right side
    11,007.82x = 137,145,296.38
  5. Step 5: Solve for x
    x = 137,145,296.38/11,007.82
  6. Step 6: Final answer
    x = 12,458.90

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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.