Home / 11,028.96-15,220.31-6,314.76

Finding the Fourth Proportional to 11,028.96, 15,220.31 and 6,314.76

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Solution

The fourth proportional to 11,028.96, 15,220.31 and 6,314.76 is: 8,714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.96 : 15,220.31 = 6,314.76 : x
  2. Step 2: Convert to fraction form
    11,028.96/15,220.31 = 6,314.76/x
  3. Step 3: Cross multiply
    11,028.96x = 15,220.31 × 6,314.76
  4. Step 4: Simplify right side
    11,028.96x = 96,112,573.20
  5. Step 5: Solve for x
    x = 96,112,573.20/11,028.96
  6. Step 6: Final answer
    x = 8,714.56

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Half scale
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Double scale
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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.