Home / 18,311.27-25,270.05-10,354.69

Finding the Fourth Proportional to 18,311.27, 25,270.05 and 10,354.69

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Solution

The fourth proportional to 18,311.27, 25,270.05 and 10,354.69 is: 14,289.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.27 : 25,270.05 = 10,354.69 : x
  2. Step 2: Convert to fraction form
    18,311.27/25,270.05 = 10,354.69/x
  3. Step 3: Cross multiply
    18,311.27x = 25,270.05 × 10,354.69
  4. Step 4: Simplify right side
    18,311.27x = 261,663,509.69
  5. Step 5: Solve for x
    x = 261,663,509.69/18,311.27
  6. Step 6: Final answer
    x = 14,289.75

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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.