Home / 7,784.73-10,742.64-4,247.87

Finding the Fourth Proportional to 7,784.73, 10,742.64 and 4,247.87

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Solution

The fourth proportional to 7,784.73, 10,742.64 and 4,247.87 is: 5,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.73 : 10,742.64 = 4,247.87 : x
  2. Step 2: Convert to fraction form
    7,784.73/10,742.64 = 4,247.87/x
  3. Step 3: Cross multiply
    7,784.73x = 10,742.64 × 4,247.87
  4. Step 4: Simplify right side
    7,784.73x = 45,633,338.18
  5. Step 5: Solve for x
    x = 45,633,338.18/7,784.73
  6. Step 6: Final answer
    x = 5,861.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.