Home / 13,722.30-20,583.33-3,861.51

Finding the Fourth Proportional to 13,722.30, 20,583.33 and 3,861.51

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Solution

The fourth proportional to 13,722.30, 20,583.33 and 3,861.51 is: 5,792.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.30 : 20,583.33 = 3,861.51 : x
  2. Step 2: Convert to fraction form
    13,722.30/20,583.33 = 3,861.51/x
  3. Step 3: Cross multiply
    13,722.30x = 20,583.33 × 3,861.51
  4. Step 4: Simplify right side
    13,722.30x = 79,482,734.63
  5. Step 5: Solve for x
    x = 79,482,734.63/13,722.30
  6. Step 6: Final answer
    x = 5,792.23

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1.5x scale

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.