Home / 18,665.56-25,743.18-13,624.12

Finding the Fourth Proportional to 18,665.56, 25,743.18 and 13,624.12

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Solution

The fourth proportional to 18,665.56, 25,743.18 and 13,624.12 is: 18,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.56 : 25,743.18 = 13,624.12 : x
  2. Step 2: Convert to fraction form
    18,665.56/25,743.18 = 13,624.12/x
  3. Step 3: Cross multiply
    18,665.56x = 25,743.18 × 13,624.12
  4. Step 4: Simplify right side
    18,665.56x = 350,728,173.50
  5. Step 5: Solve for x
    x = 350,728,173.50/18,665.56
  6. Step 6: Final answer
    x = 18,790.12

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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.