Home / 8,129.04-12,192.84-2,205.71

Finding the Fourth Proportional to 8,129.04, 12,192.84 and 2,205.71

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Solution

The fourth proportional to 8,129.04, 12,192.84 and 2,205.71 is: 3,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.04 : 12,192.84 = 2,205.71 : x
  2. Step 2: Convert to fraction form
    8,129.04/12,192.84 = 2,205.71/x
  3. Step 3: Cross multiply
    8,129.04x = 12,192.84 × 2,205.71
  4. Step 4: Simplify right side
    8,129.04x = 26,893,808.15
  5. Step 5: Solve for x
    x = 26,893,808.15/8,129.04
  6. Step 6: Final answer
    x = 3,308.36

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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.