Home / 25,665.52-38,499.65-8,136.72

Finding the Fourth Proportional to 25,665.52, 38,499.65 and 8,136.72

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Solution

The fourth proportional to 25,665.52, 38,499.65 and 8,136.72 is: 12,205.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.52 : 38,499.65 = 8,136.72 : x
  2. Step 2: Convert to fraction form
    25,665.52/38,499.65 = 8,136.72/x
  3. Step 3: Cross multiply
    25,665.52x = 38,499.65 × 8,136.72
  4. Step 4: Simplify right side
    25,665.52x = 313,260,872.15
  5. Step 5: Solve for x
    x = 313,260,872.15/25,665.52
  6. Step 6: Final answer
    x = 12,205.51

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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.