Home / 8,073.39-12,109.75-2,809.60

Finding the Fourth Proportional to 8,073.39, 12,109.75 and 2,809.60

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Solution

The fourth proportional to 8,073.39, 12,109.75 and 2,809.60 is: 4,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073.39 : 12,109.75 = 2,809.60 : x
  2. Step 2: Convert to fraction form
    8,073.39/12,109.75 = 2,809.60/x
  3. Step 3: Cross multiply
    8,073.39x = 12,109.75 × 2,809.60
  4. Step 4: Simplify right side
    8,073.39x = 34,023,539.55
  5. Step 5: Solve for x
    x = 34,023,539.55/8,073.39
  6. Step 6: Final answer
    x = 4,214.28

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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.