Home / 11,390.24-17,086.08-4,815.56

Finding the Fourth Proportional to 11,390.24, 17,086.08 and 4,815.56

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Solution

The fourth proportional to 11,390.24, 17,086.08 and 4,815.56 is: 7,223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.24 : 17,086.08 = 4,815.56 : x
  2. Step 2: Convert to fraction form
    11,390.24/17,086.08 = 4,815.56/x
  3. Step 3: Cross multiply
    11,390.24x = 17,086.08 × 4,815.56
  4. Step 4: Simplify right side
    11,390.24x = 82,279,043.40
  5. Step 5: Solve for x
    x = 82,279,043.40/11,390.24
  6. Step 6: Final answer
    x = 7,223.64

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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.