Home / 12,104.57-18,160.50-3,785.47

Finding the Fourth Proportional to 12,104.57, 18,160.50 and 3,785.47

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Solution

The fourth proportional to 12,104.57, 18,160.50 and 3,785.47 is: 5,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104.57 : 18,160.50 = 3,785.47 : x
  2. Step 2: Convert to fraction form
    12,104.57/18,160.50 = 3,785.47/x
  3. Step 3: Cross multiply
    12,104.57x = 18,160.50 × 3,785.47
  4. Step 4: Simplify right side
    12,104.57x = 68,746,027.94
  5. Step 5: Solve for x
    x = 68,746,027.94/12,104.57
  6. Step 6: Final answer
    x = 5,679.34

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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.