Home / 8,138.03-12,206.43-2,591.55

Finding the Fourth Proportional to 8,138.03, 12,206.43 and 2,591.55

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Solution

The fourth proportional to 8,138.03, 12,206.43 and 2,591.55 is: 3,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.03 : 12,206.43 = 2,591.55 : x
  2. Step 2: Convert to fraction form
    8,138.03/12,206.43 = 2,591.55/x
  3. Step 3: Cross multiply
    8,138.03x = 12,206.43 × 2,591.55
  4. Step 4: Simplify right side
    8,138.03x = 31,633,560.71
  5. Step 5: Solve for x
    x = 31,633,560.71/8,138.03
  6. Step 6: Final answer
    x = 3,887.13

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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.