Home / 16,720.47-25,080.72-6,857.97

Finding the Fourth Proportional to 16,720.47, 25,080.72 and 6,857.97

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Solution

The fourth proportional to 16,720.47, 25,080.72 and 6,857.97 is: 10,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.47 : 25,080.72 = 6,857.97 : x
  2. Step 2: Convert to fraction form
    16,720.47/25,080.72 = 6,857.97/x
  3. Step 3: Cross multiply
    16,720.47x = 25,080.72 × 6,857.97
  4. Step 4: Simplify right side
    16,720.47x = 172,002,825.34
  5. Step 5: Solve for x
    x = 172,002,825.34/16,720.47
  6. Step 6: Final answer
    x = 10,286.96

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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.