Home / 12,104.10-18,157.05-4,311.90

Finding the Fourth Proportional to 12,104.10, 18,157.05 and 4,311.90

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Solution

The fourth proportional to 12,104.10, 18,157.05 and 4,311.90 is: 6,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104.10 : 18,157.05 = 4,311.90 : x
  2. Step 2: Convert to fraction form
    12,104.10/18,157.05 = 4,311.90/x
  3. Step 3: Cross multiply
    12,104.10x = 18,157.05 × 4,311.90
  4. Step 4: Simplify right side
    12,104.10x = 78,291,383.90
  5. Step 5: Solve for x
    x = 78,291,383.90/12,104.10
  6. Step 6: Final answer
    x = 6,468.17

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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.