Home / 7,136.60-9,847.19-4,151.35

Finding the Fourth Proportional to 7,136.60, 9,847.19 and 4,151.35

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Solution

The fourth proportional to 7,136.60, 9,847.19 and 4,151.35 is: 5,728.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.60 : 9,847.19 = 4,151.35 : x
  2. Step 2: Convert to fraction form
    7,136.60/9,847.19 = 4,151.35/x
  3. Step 3: Cross multiply
    7,136.60x = 9,847.19 × 4,151.35
  4. Step 4: Simplify right side
    7,136.60x = 40,879,062.21
  5. Step 5: Solve for x
    x = 40,879,062.21/7,136.60
  6. Step 6: Final answer
    x = 5,728.09

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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.