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Finding the Fourth Proportional to 9,709.16, 13,398.74 and 5,516.68

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Solution

The fourth proportional to 9,709.16, 13,398.74 and 5,516.68 is: 7,613.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,709.16 : 13,398.74 = 5,516.68 : x
  2. Step 2: Convert to fraction form
    9,709.16/13,398.74 = 5,516.68/x
  3. Step 3: Cross multiply
    9,709.16x = 13,398.74 × 5,516.68
  4. Step 4: Simplify right side
    9,709.16x = 73,916,560.98
  5. Step 5: Solve for x
    x = 73,916,560.98/9,709.16
  6. Step 6: Final answer
    x = 7,613.07

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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.