Home / 11,140.32-15,372.18-6,662.44

Finding the Fourth Proportional to 11,140.32, 15,372.18 and 6,662.44

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Solution

The fourth proportional to 11,140.32, 15,372.18 and 6,662.44 is: 9,193.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.32 : 15,372.18 = 6,662.44 : x
  2. Step 2: Convert to fraction form
    11,140.32/15,372.18 = 6,662.44/x
  3. Step 3: Cross multiply
    11,140.32x = 15,372.18 × 6,662.44
  4. Step 4: Simplify right side
    11,140.32x = 102,416,205.14
  5. Step 5: Solve for x
    x = 102,416,205.14/11,140.32
  6. Step 6: Final answer
    x = 9,193.29

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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.