Home / 9,136.04-13,690.94-5,190.44

Finding the Fourth Proportional to 9,136.04, 13,690.94 and 5,190.44

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Solution

The fourth proportional to 9,136.04, 13,690.94 and 5,190.44 is: 7,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.04 : 13,690.94 = 5,190.44 : x
  2. Step 2: Convert to fraction form
    9,136.04/13,690.94 = 5,190.44/x
  3. Step 3: Cross multiply
    9,136.04x = 13,690.94 × 5,190.44
  4. Step 4: Simplify right side
    9,136.04x = 71,062,002.61
  5. Step 5: Solve for x
    x = 71,062,002.61/9,136.04
  6. Step 6: Final answer
    x = 7,778.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.