Home / 8,151.09-12,227.28-2,605.21

Finding the Fourth Proportional to 8,151.09, 12,227.28 and 2,605.21

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Solution

The fourth proportional to 8,151.09, 12,227.28 and 2,605.21 is: 3,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.09 : 12,227.28 = 2,605.21 : x
  2. Step 2: Convert to fraction form
    8,151.09/12,227.28 = 2,605.21/x
  3. Step 3: Cross multiply
    8,151.09x = 12,227.28 × 2,605.21
  4. Step 4: Simplify right side
    8,151.09x = 31,854,632.13
  5. Step 5: Solve for x
    x = 31,854,632.13/8,151.09
  6. Step 6: Final answer
    x = 3,908.02

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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.