Home / 13,078.40-19,617.41-3,217.76

Finding the Fourth Proportional to 13,078.40, 19,617.41 and 3,217.76

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Solution

The fourth proportional to 13,078.40, 19,617.41 and 3,217.76 is: 4,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.40 : 19,617.41 = 3,217.76 : x
  2. Step 2: Convert to fraction form
    13,078.40/19,617.41 = 3,217.76/x
  3. Step 3: Cross multiply
    13,078.40x = 19,617.41 × 3,217.76
  4. Step 4: Simplify right side
    13,078.40x = 63,124,003.03
  5. Step 5: Solve for x
    x = 63,124,003.03/13,078.40
  6. Step 6: Final answer
    x = 4,826.59

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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.