Home / 13,276.91-19,915.34-3,415.37

Finding the Fourth Proportional to 13,276.91, 19,915.34 and 3,415.37

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Solution

The fourth proportional to 13,276.91, 19,915.34 and 3,415.37 is: 5,123.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.91 : 19,915.34 = 3,415.37 : x
  2. Step 2: Convert to fraction form
    13,276.91/19,915.34 = 3,415.37/x
  3. Step 3: Cross multiply
    13,276.91x = 19,915.34 × 3,415.37
  4. Step 4: Simplify right side
    13,276.91x = 68,018,138.12
  5. Step 5: Solve for x
    x = 68,018,138.12/13,276.91
  6. Step 6: Final answer
    x = 5,123.04

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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.