Home / 6,921-9,551.04-4,126.56

Finding the Fourth Proportional to 6,921, 9,551.04 and 4,126.56

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Solution

The fourth proportional to 6,921, 9,551.04 and 4,126.56 is: 5,694.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921 : 9,551.04 = 4,126.56 : x
  2. Step 2: Convert to fraction form
    6,921/9,551.04 = 4,126.56/x
  3. Step 3: Cross multiply
    6,921x = 9,551.04 × 4,126.56
  4. Step 4: Simplify right side
    6,921x = 39,412,939.62
  5. Step 5: Solve for x
    x = 39,412,939.62/6,921
  6. Step 6: Final answer
    x = 5,694.69

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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.