Home / 11,115.54-15,339.18-6,203.70

Finding the Fourth Proportional to 11,115.54, 15,339.18 and 6,203.70

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Solution

The fourth proportional to 11,115.54, 15,339.18 and 6,203.70 is: 8,560.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.54 : 15,339.18 = 6,203.70 : x
  2. Step 2: Convert to fraction form
    11,115.54/15,339.18 = 6,203.70/x
  3. Step 3: Cross multiply
    11,115.54x = 15,339.18 × 6,203.70
  4. Step 4: Simplify right side
    11,115.54x = 95,159,670.97
  5. Step 5: Solve for x
    x = 95,159,670.97/11,115.54
  6. Step 6: Final answer
    x = 8,560.96

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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.