Home / 11,180.33-15,422.00-6,639.93

Finding the Fourth Proportional to 11,180.33, 15,422.00 and 6,639.93

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Solution

The fourth proportional to 11,180.33, 15,422.00 and 6,639.93 is: 9,159.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.33 : 15,422.00 = 6,639.93 : x
  2. Step 2: Convert to fraction form
    11,180.33/15,422.00 = 6,639.93/x
  3. Step 3: Cross multiply
    11,180.33x = 15,422.00 × 6,639.93
  4. Step 4: Simplify right side
    11,180.33x = 102,400,890.15
  5. Step 5: Solve for x
    x = 102,400,890.15/11,180.33
  6. Step 6: Final answer
    x = 9,159.02

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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.