Home / 13,380.78-20,060.21-5,056.06

Finding the Fourth Proportional to 13,380.78, 20,060.21 and 5,056.06

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Solution

The fourth proportional to 13,380.78, 20,060.21 and 5,056.06 is: 7,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.78 : 20,060.21 = 5,056.06 : x
  2. Step 2: Convert to fraction form
    13,380.78/20,060.21 = 5,056.06/x
  3. Step 3: Cross multiply
    13,380.78x = 20,060.21 × 5,056.06
  4. Step 4: Simplify right side
    13,380.78x = 101,425,600.09
  5. Step 5: Solve for x
    x = 101,425,600.09/13,380.78
  6. Step 6: Final answer
    x = 7,579.95

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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.