Home / 11,157.12-16,734.06-4,230

Finding the Fourth Proportional to 11,157.12, 16,734.06 and 4,230

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Solution

The fourth proportional to 11,157.12, 16,734.06 and 4,230 is: 6,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.12 : 16,734.06 = 4,230 : x
  2. Step 2: Convert to fraction form
    11,157.12/16,734.06 = 4,230/x
  3. Step 3: Cross multiply
    11,157.12x = 16,734.06 × 4,230
  4. Step 4: Simplify right side
    11,157.12x = 70,785,073.80
  5. Step 5: Solve for x
    x = 70,785,073.80/11,157.12
  6. Step 6: Final answer
    x = 6,344.39

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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.