Home / 25,378.38-38,072.19-8,509.73

Finding the Fourth Proportional to 25,378.38, 38,072.19 and 8,509.73

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Solution

The fourth proportional to 25,378.38, 38,072.19 and 8,509.73 is: 12,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,378.38 : 38,072.19 = 8,509.73 : x
  2. Step 2: Convert to fraction form
    25,378.38/38,072.19 = 8,509.73/x
  3. Step 3: Cross multiply
    25,378.38x = 38,072.19 × 8,509.73
  4. Step 4: Simplify right side
    25,378.38x = 323,983,898.96
  5. Step 5: Solve for x
    x = 323,983,898.96/25,378.38
  6. Step 6: Final answer
    x = 12,766.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.