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Finding the Fourth Proportional to 6,720.72, 10,060 and 4,247

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Solution

The fourth proportional to 6,720.72, 10,060 and 4,247 is: 6,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.72 : 10,060 = 4,247 : x
  2. Step 2: Convert to fraction form
    6,720.72/10,060 = 4,247/x
  3. Step 3: Cross multiply
    6,720.72x = 10,060 × 4,247
  4. Step 4: Simplify right side
    6,720.72x = 42,724,820
  5. Step 5: Solve for x
    x = 42,724,820/6,720.72
  6. Step 6: Final answer
    x = 6,357.18

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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.