Home / 17,438.44-26,109.72-12,178.70

Finding the Fourth Proportional to 17,438.44, 26,109.72 and 12,178.70

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Solution

The fourth proportional to 17,438.44, 26,109.72 and 12,178.70 is: 18,234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,438.44 : 26,109.72 = 12,178.70 : x
  2. Step 2: Convert to fraction form
    17,438.44/26,109.72 = 12,178.70/x
  3. Step 3: Cross multiply
    17,438.44x = 26,109.72 × 12,178.70
  4. Step 4: Simplify right side
    17,438.44x = 317,982,446.96
  5. Step 5: Solve for x
    x = 317,982,446.96/17,438.44
  6. Step 6: Final answer
    x = 18,234.57

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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.