Home / 6,824.66-9,415.70-4,136.72

Finding the Fourth Proportional to 6,824.66, 9,415.70 and 4,136.72

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Solution

The fourth proportional to 6,824.66, 9,415.70 and 4,136.72 is: 5,707.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.66 : 9,415.70 = 4,136.72 : x
  2. Step 2: Convert to fraction form
    6,824.66/9,415.70 = 4,136.72/x
  3. Step 3: Cross multiply
    6,824.66x = 9,415.70 × 4,136.72
  4. Step 4: Simplify right side
    6,824.66x = 38,950,046.74
  5. Step 5: Solve for x
    x = 38,950,046.74/6,824.66
  6. Step 6: Final answer
    x = 5,707.25

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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.