Home / 8,127.15-12,190.32-2,862.42

Finding the Fourth Proportional to 8,127.15, 12,190.32 and 2,862.42

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Solution

The fourth proportional to 8,127.15, 12,190.32 and 2,862.42 is: 4,293.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.15 : 12,190.32 = 2,862.42 : x
  2. Step 2: Convert to fraction form
    8,127.15/12,190.32 = 2,862.42/x
  3. Step 3: Cross multiply
    8,127.15x = 12,190.32 × 2,862.42
  4. Step 4: Simplify right side
    8,127.15x = 34,893,815.77
  5. Step 5: Solve for x
    x = 34,893,815.77/8,127.15
  6. Step 6: Final answer
    x = 4,293.49

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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.