Home / 13,617.32-20,420.94-4,849.88

Finding the Fourth Proportional to 13,617.32, 20,420.94 and 4,849.88

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Solution

The fourth proportional to 13,617.32, 20,420.94 and 4,849.88 is: 7,273.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.32 : 20,420.94 = 4,849.88 : x
  2. Step 2: Convert to fraction form
    13,617.32/20,420.94 = 4,849.88/x
  3. Step 3: Cross multiply
    13,617.32x = 20,420.94 × 4,849.88
  4. Step 4: Simplify right side
    13,617.32x = 99,039,108.49
  5. Step 5: Solve for x
    x = 99,039,108.49/13,617.32
  6. Step 6: Final answer
    x = 7,273.02

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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.