Home / 25,786.74-38,685.90-8,257.62

Finding the Fourth Proportional to 25,786.74, 38,685.90 and 8,257.62

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Solution

The fourth proportional to 25,786.74, 38,685.90 and 8,257.62 is: 12,388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.74 : 38,685.90 = 8,257.62 : x
  2. Step 2: Convert to fraction form
    25,786.74/38,685.90 = 8,257.62/x
  3. Step 3: Cross multiply
    25,786.74x = 38,685.90 × 8,257.62
  4. Step 4: Simplify right side
    25,786.74x = 319,453,461.56
  5. Step 5: Solve for x
    x = 319,453,461.56/25,786.74
  6. Step 6: Final answer
    x = 12,388.28

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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.