Home / 8,127.47-12,184.09-3,908.61

Finding the Fourth Proportional to 8,127.47, 12,184.09 and 3,908.61

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Solution

The fourth proportional to 8,127.47, 12,184.09 and 3,908.61 is: 5,859.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.47 : 12,184.09 = 3,908.61 : x
  2. Step 2: Convert to fraction form
    8,127.47/12,184.09 = 3,908.61/x
  3. Step 3: Cross multiply
    8,127.47x = 12,184.09 × 3,908.61
  4. Step 4: Simplify right side
    8,127.47x = 47,622,846.24
  5. Step 5: Solve for x
    x = 47,622,846.24/8,127.47
  6. Step 6: Final answer
    x = 5,859.49

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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.