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Finding the Fourth Proportional to 9,188.57, 13,781.21 and 2,434.20

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Solution

The fourth proportional to 9,188.57, 13,781.21 and 2,434.20 is: 3,650.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.57 : 13,781.21 = 2,434.20 : x
  2. Step 2: Convert to fraction form
    9,188.57/13,781.21 = 2,434.20/x
  3. Step 3: Cross multiply
    9,188.57x = 13,781.21 × 2,434.20
  4. Step 4: Simplify right side
    9,188.57x = 33,546,187.94
  5. Step 5: Solve for x
    x = 33,546,187.94/9,188.57
  6. Step 6: Final answer
    x = 3,650.86

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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.