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Finding the Fourth Proportional to 7,178.76, 10,768.20 and 6,201.96

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Solution

The fourth proportional to 7,178.76, 10,768.20 and 6,201.96 is: 9,302.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.76 : 10,768.20 = 6,201.96 : x
  2. Step 2: Convert to fraction form
    7,178.76/10,768.20 = 6,201.96/x
  3. Step 3: Cross multiply
    7,178.76x = 10,768.20 × 6,201.96
  4. Step 4: Simplify right side
    7,178.76x = 66,783,945.67
  5. Step 5: Solve for x
    x = 66,783,945.67/7,178.76
  6. Step 6: Final answer
    x = 9,302.99

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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.