Home / 13,217.85-19,826.69-3,357

Finding the Fourth Proportional to 13,217.85, 19,826.69 and 3,357

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Solution

The fourth proportional to 13,217.85, 19,826.69 and 3,357 is: 5,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.85 : 19,826.69 = 3,357 : x
  2. Step 2: Convert to fraction form
    13,217.85/19,826.69 = 3,357/x
  3. Step 3: Cross multiply
    13,217.85x = 19,826.69 × 3,357
  4. Step 4: Simplify right side
    13,217.85x = 66,558,181.55
  5. Step 5: Solve for x
    x = 66,558,181.55/13,217.85
  6. Step 6: Final answer
    x = 5,035.48

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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.