Home / 6,621.13-9,136.96-3,636.89

Finding the Fourth Proportional to 6,621.13, 9,136.96 and 3,636.89

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Solution

The fourth proportional to 6,621.13, 9,136.96 and 3,636.89 is: 5,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.13 : 9,136.96 = 3,636.89 : x
  2. Step 2: Convert to fraction form
    6,621.13/9,136.96 = 3,636.89/x
  3. Step 3: Cross multiply
    6,621.13x = 9,136.96 × 3,636.89
  4. Step 4: Simplify right side
    6,621.13x = 33,230,118.45
  5. Step 5: Solve for x
    x = 33,230,118.45/6,621.13
  6. Step 6: Final answer
    x = 5,018.80

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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.