Home / 9,108.60-13,662.90-4,187.85

Finding the Fourth Proportional to 9,108.60, 13,662.90 and 4,187.85

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Solution

The fourth proportional to 9,108.60, 13,662.90 and 4,187.85 is: 6,281.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.60 : 13,662.90 = 4,187.85 : x
  2. Step 2: Convert to fraction form
    9,108.60/13,662.90 = 4,187.85/x
  3. Step 3: Cross multiply
    9,108.60x = 13,662.90 × 4,187.85
  4. Step 4: Simplify right side
    9,108.60x = 57,218,175.77
  5. Step 5: Solve for x
    x = 57,218,175.77/9,108.60
  6. Step 6: Final answer
    x = 6,281.78

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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.