Home / 8,070.22-12,105-2,806.43

Finding the Fourth Proportional to 8,070.22, 12,105 and 2,806.43

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Solution

The fourth proportional to 8,070.22, 12,105 and 2,806.43 is: 4,209.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.22 : 12,105 = 2,806.43 : x
  2. Step 2: Convert to fraction form
    8,070.22/12,105 = 2,806.43/x
  3. Step 3: Cross multiply
    8,070.22x = 12,105 × 2,806.43
  4. Step 4: Simplify right side
    8,070.22x = 33,971,774.63
  5. Step 5: Solve for x
    x = 33,971,774.63/8,070.22
  6. Step 6: Final answer
    x = 4,209.52

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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.