Home / 11,101.44-15,322.60-6,388.48

Finding the Fourth Proportional to 11,101.44, 15,322.60 and 6,388.48

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Solution

The fourth proportional to 11,101.44, 15,322.60 and 6,388.48 is: 8,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.44 : 15,322.60 = 6,388.48 : x
  2. Step 2: Convert to fraction form
    11,101.44/15,322.60 = 6,388.48/x
  3. Step 3: Cross multiply
    11,101.44x = 15,322.60 × 6,388.48
  4. Step 4: Simplify right side
    11,101.44x = 97,888,123.65
  5. Step 5: Solve for x
    x = 97,888,123.65/11,101.44
  6. Step 6: Final answer
    x = 8,817.61

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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.