Home / 18,245.41-25,178.68-9,861.91

Finding the Fourth Proportional to 18,245.41, 25,178.68 and 9,861.91

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Solution

The fourth proportional to 18,245.41, 25,178.68 and 9,861.91 is: 13,609.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.41 : 25,178.68 = 9,861.91 : x
  2. Step 2: Convert to fraction form
    18,245.41/25,178.68 = 9,861.91/x
  3. Step 3: Cross multiply
    18,245.41x = 25,178.68 × 9,861.91
  4. Step 4: Simplify right side
    18,245.41x = 248,309,876.08
  5. Step 5: Solve for x
    x = 248,309,876.08/18,245.41
  6. Step 6: Final answer
    x = 13,609.44

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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.