Home / 16,769.47-25,149.70-7,986.91

Finding the Fourth Proportional to 16,769.47, 25,149.70 and 7,986.91

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Solution

The fourth proportional to 16,769.47, 25,149.70 and 7,986.91 is: 11,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,769.47 : 25,149.70 = 7,986.91 : x
  2. Step 2: Convert to fraction form
    16,769.47/25,149.70 = 7,986.91/x
  3. Step 3: Cross multiply
    16,769.47x = 25,149.70 × 7,986.91
  4. Step 4: Simplify right side
    16,769.47x = 200,868,390.43
  5. Step 5: Solve for x
    x = 200,868,390.43/16,769.47
  6. Step 6: Final answer
    x = 11,978.22

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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.