Home / 8,046.15-12,070.85-2,781.36

Finding the Fourth Proportional to 8,046.15, 12,070.85 and 2,781.36

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Solution

The fourth proportional to 8,046.15, 12,070.85 and 2,781.36 is: 4,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,046.15 : 12,070.85 = 2,781.36 : x
  2. Step 2: Convert to fraction form
    8,046.15/12,070.85 = 2,781.36/x
  3. Step 3: Cross multiply
    8,046.15x = 12,070.85 × 2,781.36
  4. Step 4: Simplify right side
    8,046.15x = 33,573,365.45
  5. Step 5: Solve for x
    x = 33,573,365.45/8,046.15
  6. Step 6: Final answer
    x = 4,172.60

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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.