Home / 11,618.56-17,424.60-8,321.86

Finding the Fourth Proportional to 11,618.56, 17,424.60 and 8,321.86

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Solution

The fourth proportional to 11,618.56, 17,424.60 and 8,321.86 is: 12,480.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.56 : 17,424.60 = 8,321.86 : x
  2. Step 2: Convert to fraction form
    11,618.56/17,424.60 = 8,321.86/x
  3. Step 3: Cross multiply
    11,618.56x = 17,424.60 × 8,321.86
  4. Step 4: Simplify right side
    11,618.56x = 145,005,081.76
  5. Step 5: Solve for x
    x = 145,005,081.76/11,618.56
  6. Step 6: Final answer
    x = 12,480.47

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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.