Home / 6,983.49-9,636.13-4,149.81

Finding the Fourth Proportional to 6,983.49, 9,636.13 and 4,149.81

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Solution

The fourth proportional to 6,983.49, 9,636.13 and 4,149.81 is: 5,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,983.49 : 9,636.13 = 4,149.81 : x
  2. Step 2: Convert to fraction form
    6,983.49/9,636.13 = 4,149.81/x
  3. Step 3: Cross multiply
    6,983.49x = 9,636.13 × 4,149.81
  4. Step 4: Simplify right side
    6,983.49x = 39,988,108.64
  5. Step 5: Solve for x
    x = 39,988,108.64/6,983.49
  6. Step 6: Final answer
    x = 5,726.09

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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.