Home / 11,140.76-15,369.32-6,662.24

Finding the Fourth Proportional to 11,140.76, 15,369.32 and 6,662.24

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Solution

The fourth proportional to 11,140.76, 15,369.32 and 6,662.24 is: 9,190.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.76 : 15,369.32 = 6,662.24 : x
  2. Step 2: Convert to fraction form
    11,140.76/15,369.32 = 6,662.24/x
  3. Step 3: Cross multiply
    11,140.76x = 15,369.32 × 6,662.24
  4. Step 4: Simplify right side
    11,140.76x = 102,394,098.48
  5. Step 5: Solve for x
    x = 102,394,098.48/11,140.76
  6. Step 6: Final answer
    x = 9,190.94

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1.5x scale

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.