Home / 10,747.92-16,112.64-4,178.76

Finding the Fourth Proportional to 10,747.92, 16,112.64 and 4,178.76

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Solution

The fourth proportional to 10,747.92, 16,112.64 and 4,178.76 is: 6,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.92 : 16,112.64 = 4,178.76 : x
  2. Step 2: Convert to fraction form
    10,747.92/16,112.64 = 4,178.76/x
  3. Step 3: Cross multiply
    10,747.92x = 16,112.64 × 4,178.76
  4. Step 4: Simplify right side
    10,747.92x = 67,330,855.53
  5. Step 5: Solve for x
    x = 67,330,855.53/10,747.92
  6. Step 6: Final answer
    x = 6,264.55

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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.