Home / 7,126.99-9,836.18-3,983.83

Finding the Fourth Proportional to 7,126.99, 9,836.18 and 3,983.83

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Solution

The fourth proportional to 7,126.99, 9,836.18 and 3,983.83 is: 5,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.99 : 9,836.18 = 3,983.83 : x
  2. Step 2: Convert to fraction form
    7,126.99/9,836.18 = 3,983.83/x
  3. Step 3: Cross multiply
    7,126.99x = 9,836.18 × 3,983.83
  4. Step 4: Simplify right side
    7,126.99x = 39,185,668.97
  5. Step 5: Solve for x
    x = 39,185,668.97/7,126.99
  6. Step 6: Final answer
    x = 5,498.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.