Home / 8,151.80-12,227.59-2,605.07

Finding the Fourth Proportional to 8,151.80, 12,227.59 and 2,605.07

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Solution

The fourth proportional to 8,151.80, 12,227.59 and 2,605.07 is: 3,907.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.80 : 12,227.59 = 2,605.07 : x
  2. Step 2: Convert to fraction form
    8,151.80/12,227.59 = 2,605.07/x
  3. Step 3: Cross multiply
    8,151.80x = 12,227.59 × 2,605.07
  4. Step 4: Simplify right side
    8,151.80x = 31,853,727.88
  5. Step 5: Solve for x
    x = 31,853,727.88/8,151.80
  6. Step 6: Final answer
    x = 3,907.57

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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.