Home / 9,136.62-12,609.77-5,360.70

Finding the Fourth Proportional to 9,136.62, 12,609.77 and 5,360.70

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Solution

The fourth proportional to 9,136.62, 12,609.77 and 5,360.70 is: 7,398.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.62 : 12,609.77 = 5,360.70 : x
  2. Step 2: Convert to fraction form
    9,136.62/12,609.77 = 5,360.70/x
  3. Step 3: Cross multiply
    9,136.62x = 12,609.77 × 5,360.70
  4. Step 4: Simplify right side
    9,136.62x = 67,597,194.04
  5. Step 5: Solve for x
    x = 67,597,194.04/9,136.62
  6. Step 6: Final answer
    x = 7,398.49

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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.