Home / 8,127.91-12,196.96-3,197.41

Finding the Fourth Proportional to 8,127.91, 12,196.96 and 3,197.41

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Solution

The fourth proportional to 8,127.91, 12,196.96 and 3,197.41 is: 4,798.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.91 : 12,196.96 = 3,197.41 : x
  2. Step 2: Convert to fraction form
    8,127.91/12,196.96 = 3,197.41/x
  3. Step 3: Cross multiply
    8,127.91x = 12,196.96 × 3,197.41
  4. Step 4: Simplify right side
    8,127.91x = 38,998,681.87
  5. Step 5: Solve for x
    x = 38,998,681.87/8,127.91
  6. Step 6: Final answer
    x = 4,798.12

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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.