Home / 10,747.88-16,125.57-4,178.67

Finding the Fourth Proportional to 10,747.88, 16,125.57 and 4,178.67

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Solution

The fourth proportional to 10,747.88, 16,125.57 and 4,178.67 is: 6,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.88 : 16,125.57 = 4,178.67 : x
  2. Step 2: Convert to fraction form
    10,747.88/16,125.57 = 4,178.67/x
  3. Step 3: Cross multiply
    10,747.88x = 16,125.57 × 4,178.67
  4. Step 4: Simplify right side
    10,747.88x = 67,383,435.59
  5. Step 5: Solve for x
    x = 67,383,435.59/10,747.88
  6. Step 6: Final answer
    x = 6,269.47

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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.