Home / 13,407.12-20,109.84-4,046.64

Finding the Fourth Proportional to 13,407.12, 20,109.84 and 4,046.64

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Solution

The fourth proportional to 13,407.12, 20,109.84 and 4,046.64 is: 6,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.12 : 20,109.84 = 4,046.64 : x
  2. Step 2: Convert to fraction form
    13,407.12/20,109.84 = 4,046.64/x
  3. Step 3: Cross multiply
    13,407.12x = 20,109.84 × 4,046.64
  4. Step 4: Simplify right side
    13,407.12x = 81,377,282.94
  5. Step 5: Solve for x
    x = 81,377,282.94/13,407.12
  6. Step 6: Final answer
    x = 6,069.71

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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.