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Finding the Fourth Proportional to 7,935.71, 11,900.12 and 4,237.11

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Solution

The fourth proportional to 7,935.71, 11,900.12 and 4,237.11 is: 6,353.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.71 : 11,900.12 = 4,237.11 : x
  2. Step 2: Convert to fraction form
    7,935.71/11,900.12 = 4,237.11/x
  3. Step 3: Cross multiply
    7,935.71x = 11,900.12 × 4,237.11
  4. Step 4: Simplify right side
    7,935.71x = 50,422,096.27
  5. Step 5: Solve for x
    x = 50,422,096.27/7,935.71
  6. Step 6: Final answer
    x = 6,353.83

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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.