Home / 10,214.62-15,322.82-2,819.08

Finding the Fourth Proportional to 10,214.62, 15,322.82 and 2,819.08

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Solution

The fourth proportional to 10,214.62, 15,322.82 and 2,819.08 is: 4,228.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.62 : 15,322.82 = 2,819.08 : x
  2. Step 2: Convert to fraction form
    10,214.62/15,322.82 = 2,819.08/x
  3. Step 3: Cross multiply
    10,214.62x = 15,322.82 × 2,819.08
  4. Step 4: Simplify right side
    10,214.62x = 43,196,305.32
  5. Step 5: Solve for x
    x = 43,196,305.32/10,214.62
  6. Step 6: Final answer
    x = 4,228.87

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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.