Home / 8,211.08-11,335.02-5,231

Finding the Fourth Proportional to 8,211.08, 11,335.02 and 5,231

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Solution

The fourth proportional to 8,211.08, 11,335.02 and 5,231 is: 7,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.08 : 11,335.02 = 5,231 : x
  2. Step 2: Convert to fraction form
    8,211.08/11,335.02 = 5,231/x
  3. Step 3: Cross multiply
    8,211.08x = 11,335.02 × 5,231
  4. Step 4: Simplify right side
    8,211.08x = 59,293,489.62
  5. Step 5: Solve for x
    x = 59,293,489.62/8,211.08
  6. Step 6: Final answer
    x = 7,221.16

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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.