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Finding the Fourth Proportional to 7,002.56, 9,665.43 and 4,019.96

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Solution

The fourth proportional to 7,002.56, 9,665.43 and 4,019.96 is: 5,548.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.56 : 9,665.43 = 4,019.96 : x
  2. Step 2: Convert to fraction form
    7,002.56/9,665.43 = 4,019.96/x
  3. Step 3: Cross multiply
    7,002.56x = 9,665.43 × 4,019.96
  4. Step 4: Simplify right side
    7,002.56x = 38,854,641.98
  5. Step 5: Solve for x
    x = 38,854,641.98/7,002.56
  6. Step 6: Final answer
    x = 5,548.63

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