Home / 11,108.18-15,332.82-7,751

Finding the Fourth Proportional to 11,108.18, 15,332.82 and 7,751

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Solution

The fourth proportional to 11,108.18, 15,332.82 and 7,751 is: 10,698.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.18 : 15,332.82 = 7,751 : x
  2. Step 2: Convert to fraction form
    11,108.18/15,332.82 = 7,751/x
  3. Step 3: Cross multiply
    11,108.18x = 15,332.82 × 7,751
  4. Step 4: Simplify right side
    11,108.18x = 118,844,687.82
  5. Step 5: Solve for x
    x = 118,844,687.82/11,108.18
  6. Step 6: Final answer
    x = 10,698.84

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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.