Home / 18,969.08-28,446.33-13,107.92

Finding the Fourth Proportional to 18,969.08, 28,446.33 and 13,107.92

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Solution

The fourth proportional to 18,969.08, 28,446.33 and 13,107.92 is: 19,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.08 : 28,446.33 = 13,107.92 : x
  2. Step 2: Convert to fraction form
    18,969.08/28,446.33 = 13,107.92/x
  3. Step 3: Cross multiply
    18,969.08x = 28,446.33 × 13,107.92
  4. Step 4: Simplify right side
    18,969.08x = 372,872,217.93
  5. Step 5: Solve for x
    x = 372,872,217.93/18,969.08
  6. Step 6: Final answer
    x = 19,656.84

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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.