Home / 11,115.17-16,679.32-4,100.08

Finding the Fourth Proportional to 11,115.17, 16,679.32 and 4,100.08

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Solution

The fourth proportional to 11,115.17, 16,679.32 and 4,100.08 is: 6,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.17 : 16,679.32 = 4,100.08 : x
  2. Step 2: Convert to fraction form
    11,115.17/16,679.32 = 4,100.08/x
  3. Step 3: Cross multiply
    11,115.17x = 16,679.32 × 4,100.08
  4. Step 4: Simplify right side
    11,115.17x = 68,386,546.35
  5. Step 5: Solve for x
    x = 68,386,546.35/11,115.17
  6. Step 6: Final answer
    x = 6,152.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.