Home / 11,091.08-15,322.38-7,271.79

Finding the Fourth Proportional to 11,091.08, 15,322.38 and 7,271.79

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Solution

The fourth proportional to 11,091.08, 15,322.38 and 7,271.79 is: 10,046.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.08 : 15,322.38 = 7,271.79 : x
  2. Step 2: Convert to fraction form
    11,091.08/15,322.38 = 7,271.79/x
  3. Step 3: Cross multiply
    11,091.08x = 15,322.38 × 7,271.79
  4. Step 4: Simplify right side
    11,091.08x = 111,421,129.66
  5. Step 5: Solve for x
    x = 111,421,129.66/11,091.08
  6. Step 6: Final answer
    x = 10,046.02

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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.