Home / 13,379.74-20,071.89-4,612.61

Finding the Fourth Proportional to 13,379.74, 20,071.89 and 4,612.61

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Solution

The fourth proportional to 13,379.74, 20,071.89 and 4,612.61 is: 6,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.74 : 20,071.89 = 4,612.61 : x
  2. Step 2: Convert to fraction form
    13,379.74/20,071.89 = 4,612.61/x
  3. Step 3: Cross multiply
    13,379.74x = 20,071.89 × 4,612.61
  4. Step 4: Simplify right side
    13,379.74x = 92,583,850.71
  5. Step 5: Solve for x
    x = 92,583,850.71/13,379.74
  6. Step 6: Final answer
    x = 6,919.71

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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.