Home / 13,469.63-20,176.90-10,979.69

Finding the Fourth Proportional to 13,469.63, 20,176.90 and 10,979.69

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Solution

The fourth proportional to 13,469.63, 20,176.90 and 10,979.69 is: 16,447.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.63 : 20,176.90 = 10,979.69 : x
  2. Step 2: Convert to fraction form
    13,469.63/20,176.90 = 10,979.69/x
  3. Step 3: Cross multiply
    13,469.63x = 20,176.90 × 10,979.69
  4. Step 4: Simplify right side
    13,469.63x = 221,536,107.16
  5. Step 5: Solve for x
    x = 221,536,107.16/13,469.63
  6. Step 6: Final answer
    x = 16,447.08

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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.