Home / 13,276.19-19,914.46-3,415.21

Finding the Fourth Proportional to 13,276.19, 19,914.46 and 3,415.21

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Solution

The fourth proportional to 13,276.19, 19,914.46 and 3,415.21 is: 5,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.19 : 19,914.46 = 3,415.21 : x
  2. Step 2: Convert to fraction form
    13,276.19/19,914.46 = 3,415.21/x
  3. Step 3: Cross multiply
    13,276.19x = 19,914.46 × 3,415.21
  4. Step 4: Simplify right side
    13,276.19x = 68,012,004.61
  5. Step 5: Solve for x
    x = 68,012,004.61/13,276.19
  6. Step 6: Final answer
    x = 5,122.85

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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.