Home / 8,073.08-12,112.73-3,146.21

Finding the Fourth Proportional to 8,073.08, 12,112.73 and 3,146.21

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Solution

The fourth proportional to 8,073.08, 12,112.73 and 3,146.21 is: 4,720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073.08 : 12,112.73 = 3,146.21 : x
  2. Step 2: Convert to fraction form
    8,073.08/12,112.73 = 3,146.21/x
  3. Step 3: Cross multiply
    8,073.08x = 12,112.73 × 3,146.21
  4. Step 4: Simplify right side
    8,073.08x = 38,109,176.52
  5. Step 5: Solve for x
    x = 38,109,176.52/8,073.08
  6. Step 6: Final answer
    x = 4,720.53

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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.