Home / 7,847.43-11,775.20-5,216.76

Finding the Fourth Proportional to 7,847.43, 11,775.20 and 5,216.76

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Solution

The fourth proportional to 7,847.43, 11,775.20 and 5,216.76 is: 7,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.43 : 11,775.20 = 5,216.76 : x
  2. Step 2: Convert to fraction form
    7,847.43/11,775.20 = 5,216.76/x
  3. Step 3: Cross multiply
    7,847.43x = 11,775.20 × 5,216.76
  4. Step 4: Simplify right side
    7,847.43x = 61,428,366.27
  5. Step 5: Solve for x
    x = 61,428,366.27/7,847.43
  6. Step 6: Final answer
    x = 7,827.83

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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.