Home / 8,084.12-11,157.90-5,288

Finding the Fourth Proportional to 8,084.12, 11,157.90 and 5,288

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Solution

The fourth proportional to 8,084.12, 11,157.90 and 5,288 is: 7,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,084.12 : 11,157.90 = 5,288 : x
  2. Step 2: Convert to fraction form
    8,084.12/11,157.90 = 5,288/x
  3. Step 3: Cross multiply
    8,084.12x = 11,157.90 × 5,288
  4. Step 4: Simplify right side
    8,084.12x = 59,002,975.20
  5. Step 5: Solve for x
    x = 59,002,975.20/8,084.12
  6. Step 6: Final answer
    x = 7,298.63

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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.