Home / 6,622.68-9,136.12-3,969.58

Finding the Fourth Proportional to 6,622.68, 9,136.12 and 3,969.58

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Solution

The fourth proportional to 6,622.68, 9,136.12 and 3,969.58 is: 5,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.68 : 9,136.12 = 3,969.58 : x
  2. Step 2: Convert to fraction form
    6,622.68/9,136.12 = 3,969.58/x
  3. Step 3: Cross multiply
    6,622.68x = 9,136.12 × 3,969.58
  4. Step 4: Simplify right side
    6,622.68x = 36,266,559.23
  5. Step 5: Solve for x
    x = 36,266,559.23/6,622.68
  6. Step 6: Final answer
    x = 5,476.12

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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.