Home / 13,276.53-19,914.81-3,415.83

Finding the Fourth Proportional to 13,276.53, 19,914.81 and 3,415.83

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Solution

The fourth proportional to 13,276.53, 19,914.81 and 3,415.83 is: 5,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.53 : 19,914.81 = 3,415.83 : x
  2. Step 2: Convert to fraction form
    13,276.53/19,914.81 = 3,415.83/x
  3. Step 3: Cross multiply
    13,276.53x = 19,914.81 × 3,415.83
  4. Step 4: Simplify right side
    13,276.53x = 68,025,605.44
  5. Step 5: Solve for x
    x = 68,025,605.44/13,276.53
  6. Step 6: Final answer
    x = 5,123.75

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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.