Home / 8,395.20-12,584.61-3,126.36

Finding the Fourth Proportional to 8,395.20, 12,584.61 and 3,126.36

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Solution

The fourth proportional to 8,395.20, 12,584.61 and 3,126.36 is: 4,686.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.20 : 12,584.61 = 3,126.36 : x
  2. Step 2: Convert to fraction form
    8,395.20/12,584.61 = 3,126.36/x
  3. Step 3: Cross multiply
    8,395.20x = 12,584.61 × 3,126.36
  4. Step 4: Simplify right side
    8,395.20x = 39,344,021.32
  5. Step 5: Solve for x
    x = 39,344,021.32/8,395.20
  6. Step 6: Final answer
    x = 4,686.49

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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.