Home / 8,136.32-12,205.37-2,587.71

Finding the Fourth Proportional to 8,136.32, 12,205.37 and 2,587.71

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Solution

The fourth proportional to 8,136.32, 12,205.37 and 2,587.71 is: 3,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.32 : 12,205.37 = 2,587.71 : x
  2. Step 2: Convert to fraction form
    8,136.32/12,205.37 = 2,587.71/x
  3. Step 3: Cross multiply
    8,136.32x = 12,205.37 × 2,587.71
  4. Step 4: Simplify right side
    8,136.32x = 31,584,010.24
  5. Step 5: Solve for x
    x = 31,584,010.24/8,136.32
  6. Step 6: Final answer
    x = 3,881.86

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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.