Home / 6,647.84-9,175.08-3,996.80

Finding the Fourth Proportional to 6,647.84, 9,175.08 and 3,996.80

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Solution

The fourth proportional to 6,647.84, 9,175.08 and 3,996.80 is: 5,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.84 : 9,175.08 = 3,996.80 : x
  2. Step 2: Convert to fraction form
    6,647.84/9,175.08 = 3,996.80/x
  3. Step 3: Cross multiply
    6,647.84x = 9,175.08 × 3,996.80
  4. Step 4: Simplify right side
    6,647.84x = 36,670,959.74
  5. Step 5: Solve for x
    x = 36,670,959.74/6,647.84
  6. Step 6: Final answer
    x = 5,516.22

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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.