Home / 18,311.34-25,270.14-10,354.75

Finding the Fourth Proportional to 18,311.34, 25,270.14 and 10,354.75

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Solution

The fourth proportional to 18,311.34, 25,270.14 and 10,354.75 is: 14,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.34 : 25,270.14 = 10,354.75 : x
  2. Step 2: Convert to fraction form
    18,311.34/25,270.14 = 10,354.75/x
  3. Step 3: Cross multiply
    18,311.34x = 25,270.14 × 10,354.75
  4. Step 4: Simplify right side
    18,311.34x = 261,665,982.17
  5. Step 5: Solve for x
    x = 261,665,982.17/18,311.34
  6. Step 6: Final answer
    x = 14,289.83

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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.