Home / 6,623.61-9,136.53-3,933

Finding the Fourth Proportional to 6,623.61, 9,136.53 and 3,933

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Solution

The fourth proportional to 6,623.61, 9,136.53 and 3,933 is: 5,425.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.61 : 9,136.53 = 3,933 : x
  2. Step 2: Convert to fraction form
    6,623.61/9,136.53 = 3,933/x
  3. Step 3: Cross multiply
    6,623.61x = 9,136.53 × 3,933
  4. Step 4: Simplify right side
    6,623.61x = 35,933,972.49
  5. Step 5: Solve for x
    x = 35,933,972.49/6,623.61
  6. Step 6: Final answer
    x = 5,425.13

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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.