Home / 11,276.12-16,845.04-8,129.27

Finding the Fourth Proportional to 11,276.12, 16,845.04 and 8,129.27

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Solution

The fourth proportional to 11,276.12, 16,845.04 and 8,129.27 is: 12,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.12 : 16,845.04 = 8,129.27 : x
  2. Step 2: Convert to fraction form
    11,276.12/16,845.04 = 8,129.27/x
  3. Step 3: Cross multiply
    11,276.12x = 16,845.04 × 8,129.27
  4. Step 4: Simplify right side
    11,276.12x = 136,937,930.59
  5. Step 5: Solve for x
    x = 136,937,930.59/11,276.12
  6. Step 6: Final answer
    x = 12,144.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.