Home / 8,218.16-11,336.46-5,072.12

Finding the Fourth Proportional to 8,218.16, 11,336.46 and 5,072.12

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Solution

The fourth proportional to 8,218.16, 11,336.46 and 5,072.12 is: 6,996.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.16 : 11,336.46 = 5,072.12 : x
  2. Step 2: Convert to fraction form
    8,218.16/11,336.46 = 5,072.12/x
  3. Step 3: Cross multiply
    8,218.16x = 11,336.46 × 5,072.12
  4. Step 4: Simplify right side
    8,218.16x = 57,499,885.50
  5. Step 5: Solve for x
    x = 57,499,885.50/8,218.16
  6. Step 6: Final answer
    x = 6,996.69

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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.