Home / 13,381.32-20,072.85-4,495.95

Finding the Fourth Proportional to 13,381.32, 20,072.85 and 4,495.95

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Solution

The fourth proportional to 13,381.32, 20,072.85 and 4,495.95 is: 6,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.32 : 20,072.85 = 4,495.95 : x
  2. Step 2: Convert to fraction form
    13,381.32/20,072.85 = 4,495.95/x
  3. Step 3: Cross multiply
    13,381.32x = 20,072.85 × 4,495.95
  4. Step 4: Simplify right side
    13,381.32x = 90,246,529.96
  5. Step 5: Solve for x
    x = 90,246,529.96/13,381.32
  6. Step 6: Final answer
    x = 6,744.22

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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.