Home / 11,115.30-15,336.99-6,335.15

Finding the Fourth Proportional to 11,115.30, 15,336.99 and 6,335.15

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Solution

The fourth proportional to 11,115.30, 15,336.99 and 6,335.15 is: 8,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.30 : 15,336.99 = 6,335.15 : x
  2. Step 2: Convert to fraction form
    11,115.30/15,336.99 = 6,335.15/x
  3. Step 3: Cross multiply
    11,115.30x = 15,336.99 × 6,335.15
  4. Step 4: Simplify right side
    11,115.30x = 97,162,062.18
  5. Step 5: Solve for x
    x = 97,162,062.18/11,115.30
  6. Step 6: Final answer
    x = 8,741.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.