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Finding the Fourth Proportional to 7,516.68, 10,368.18 and 5,160.12

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Solution

The fourth proportional to 7,516.68, 10,368.18 and 5,160.12 is: 7,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,516.68 : 10,368.18 = 5,160.12 : x
  2. Step 2: Convert to fraction form
    7,516.68/10,368.18 = 5,160.12/x
  3. Step 3: Cross multiply
    7,516.68x = 10,368.18 × 5,160.12
  4. Step 4: Simplify right side
    7,516.68x = 53,501,052.98
  5. Step 5: Solve for x
    x = 53,501,052.98/7,516.68
  6. Step 6: Final answer
    x = 7,117.64

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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.