Home / 12,115.60-18,173.34-3,230.91

Finding the Fourth Proportional to 12,115.60, 18,173.34 and 3,230.91

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Solution

The fourth proportional to 12,115.60, 18,173.34 and 3,230.91 is: 4,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.60 : 18,173.34 = 3,230.91 : x
  2. Step 2: Convert to fraction form
    12,115.60/18,173.34 = 3,230.91/x
  3. Step 3: Cross multiply
    12,115.60x = 18,173.34 × 3,230.91
  4. Step 4: Simplify right side
    12,115.60x = 58,716,425.94
  5. Step 5: Solve for x
    x = 58,716,425.94/12,115.60
  6. Step 6: Final answer
    x = 4,846.35

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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.