Home / 8,151.71-12,228.22-2,605.84

Finding the Fourth Proportional to 8,151.71, 12,228.22 and 2,605.84

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Solution

The fourth proportional to 8,151.71, 12,228.22 and 2,605.84 is: 3,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.71 : 12,228.22 = 2,605.84 : x
  2. Step 2: Convert to fraction form
    8,151.71/12,228.22 = 2,605.84/x
  3. Step 3: Cross multiply
    8,151.71x = 12,228.22 × 2,605.84
  4. Step 4: Simplify right side
    8,151.71x = 31,864,784.80
  5. Step 5: Solve for x
    x = 31,864,784.80/8,151.71
  6. Step 6: Final answer
    x = 3,908.97

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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.