Home / 18,245.12-25,178.27-9,861.62

Finding the Fourth Proportional to 18,245.12, 25,178.27 and 9,861.62

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Solution

The fourth proportional to 18,245.12, 25,178.27 and 9,861.62 is: 13,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.12 : 25,178.27 = 9,861.62 : x
  2. Step 2: Convert to fraction form
    18,245.12/25,178.27 = 9,861.62/x
  3. Step 3: Cross multiply
    18,245.12x = 25,178.27 × 9,861.62
  4. Step 4: Simplify right side
    18,245.12x = 248,298,355.80
  5. Step 5: Solve for x
    x = 248,298,355.80/18,245.12
  6. Step 6: Final answer
    x = 13,609.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.