Home / 6,621.18-9,136.44-3,968.16

Finding the Fourth Proportional to 6,621.18, 9,136.44 and 3,968.16

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Solution

The fourth proportional to 6,621.18, 9,136.44 and 3,968.16 is: 5,475.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.18 : 9,136.44 = 3,968.16 : x
  2. Step 2: Convert to fraction form
    6,621.18/9,136.44 = 3,968.16/x
  3. Step 3: Cross multiply
    6,621.18x = 9,136.44 × 3,968.16
  4. Step 4: Simplify right side
    6,621.18x = 36,254,855.75
  5. Step 5: Solve for x
    x = 36,254,855.75/6,621.18
  6. Step 6: Final answer
    x = 5,475.59

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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.