Home / 10,214.60-15,322.77-2,819.07

Finding the Fourth Proportional to 10,214.60, 15,322.77 and 2,819.07

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Solution

The fourth proportional to 10,214.60, 15,322.77 and 2,819.07 is: 4,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.60 : 15,322.77 = 2,819.07 : x
  2. Step 2: Convert to fraction form
    10,214.60/15,322.77 = 2,819.07/x
  3. Step 3: Cross multiply
    10,214.60x = 15,322.77 × 2,819.07
  4. Step 4: Simplify right side
    10,214.60x = 43,195,961.22
  5. Step 5: Solve for x
    x = 43,195,961.22/10,214.60
  6. Step 6: Final answer
    x = 4,228.85

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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.