Home / 13,721.96-20,583.01-3,861.32

Finding the Fourth Proportional to 13,721.96, 20,583.01 and 3,861.32

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Solution

The fourth proportional to 13,721.96, 20,583.01 and 3,861.32 is: 5,792.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.96 : 20,583.01 = 3,861.32 : x
  2. Step 2: Convert to fraction form
    13,721.96/20,583.01 = 3,861.32/x
  3. Step 3: Cross multiply
    13,721.96x = 20,583.01 × 3,861.32
  4. Step 4: Simplify right side
    13,721.96x = 79,477,605.86
  5. Step 5: Solve for x
    x = 79,477,605.86/13,721.96
  6. Step 6: Final answer
    x = 5,792.00

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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.