Home / 13,861.53-20,755.04-10,558.89

Finding the Fourth Proportional to 13,861.53, 20,755.04 and 10,558.89

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Solution

The fourth proportional to 13,861.53, 20,755.04 and 10,558.89 is: 15,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.53 : 20,755.04 = 10,558.89 : x
  2. Step 2: Convert to fraction form
    13,861.53/20,755.04 = 10,558.89/x
  3. Step 3: Cross multiply
    13,861.53x = 20,755.04 × 10,558.89
  4. Step 4: Simplify right side
    13,861.53x = 219,150,131.51
  5. Step 5: Solve for x
    x = 219,150,131.51/13,861.53
  6. Step 6: Final answer
    x = 15,809.95

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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.