Home / 11,357.64-17,036.48-5,120.61

Finding the Fourth Proportional to 11,357.64, 17,036.48 and 5,120.61

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Solution

The fourth proportional to 11,357.64, 17,036.48 and 5,120.61 is: 7,680.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,357.64 : 17,036.48 = 5,120.61 : x
  2. Step 2: Convert to fraction form
    11,357.64/17,036.48 = 5,120.61/x
  3. Step 3: Cross multiply
    11,357.64x = 17,036.48 × 5,120.61
  4. Step 4: Simplify right side
    11,357.64x = 87,237,169.85
  5. Step 5: Solve for x
    x = 87,237,169.85/11,357.64
  6. Step 6: Final answer
    x = 7,680.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.