Home / 8,149.09-12,225.45-2,602.75

Finding the Fourth Proportional to 8,149.09, 12,225.45 and 2,602.75

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Solution

The fourth proportional to 8,149.09, 12,225.45 and 2,602.75 is: 3,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.09 : 12,225.45 = 2,602.75 : x
  2. Step 2: Convert to fraction form
    8,149.09/12,225.45 = 2,602.75/x
  3. Step 3: Cross multiply
    8,149.09x = 12,225.45 × 2,602.75
  4. Step 4: Simplify right side
    8,149.09x = 31,819,789.99
  5. Step 5: Solve for x
    x = 31,819,789.99/8,149.09
  6. Step 6: Final answer
    x = 3,904.70

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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.