Home / 8,240.15-12,360.24-3,860.70

Finding the Fourth Proportional to 8,240.15, 12,360.24 and 3,860.70

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Solution

The fourth proportional to 8,240.15, 12,360.24 and 3,860.70 is: 5,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.15 : 12,360.24 = 3,860.70 : x
  2. Step 2: Convert to fraction form
    8,240.15/12,360.24 = 3,860.70/x
  3. Step 3: Cross multiply
    8,240.15x = 12,360.24 × 3,860.70
  4. Step 4: Simplify right side
    8,240.15x = 47,719,178.57
  5. Step 5: Solve for x
    x = 47,719,178.57/8,240.15
  6. Step 6: Final answer
    x = 5,791.06

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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.