Home / 11,708.21-17,571.54-5,138.93

Finding the Fourth Proportional to 11,708.21, 17,571.54 and 5,138.93

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Solution

The fourth proportional to 11,708.21, 17,571.54 and 5,138.93 is: 7,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,708.21 : 17,571.54 = 5,138.93 : x
  2. Step 2: Convert to fraction form
    11,708.21/17,571.54 = 5,138.93/x
  3. Step 3: Cross multiply
    11,708.21x = 17,571.54 × 5,138.93
  4. Step 4: Simplify right side
    11,708.21x = 90,298,826.19
  5. Step 5: Solve for x
    x = 90,298,826.19/11,708.21
  6. Step 6: Final answer
    x = 7,712.44

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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.