Home / 11,316.06-16,904.54-8,169.21

Finding the Fourth Proportional to 11,316.06, 16,904.54 and 8,169.21

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Solution

The fourth proportional to 11,316.06, 16,904.54 and 8,169.21 is: 12,203.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.06 : 16,904.54 = 8,169.21 : x
  2. Step 2: Convert to fraction form
    11,316.06/16,904.54 = 8,169.21/x
  3. Step 3: Cross multiply
    11,316.06x = 16,904.54 × 8,169.21
  4. Step 4: Simplify right side
    11,316.06x = 138,096,757.64
  5. Step 5: Solve for x
    x = 138,096,757.64/11,316.06
  6. Step 6: Final answer
    x = 12,203.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.