Home / 25,665.39-38,499.45-8,136.60

Finding the Fourth Proportional to 25,665.39, 38,499.45 and 8,136.60

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Solution

The fourth proportional to 25,665.39, 38,499.45 and 8,136.60 is: 12,205.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.39 : 38,499.45 = 8,136.60 : x
  2. Step 2: Convert to fraction form
    25,665.39/38,499.45 = 8,136.60/x
  3. Step 3: Cross multiply
    25,665.39x = 38,499.45 × 8,136.60
  4. Step 4: Simplify right side
    25,665.39x = 313,254,624.87
  5. Step 5: Solve for x
    x = 313,254,624.87/25,665.39
  6. Step 6: Final answer
    x = 12,205.33

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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.