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Finding the Fourth Proportional to 8,316.53, 11,474.01 and 5,172.53

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Solution

The fourth proportional to 8,316.53, 11,474.01 and 5,172.53 is: 7,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.53 : 11,474.01 = 5,172.53 : x
  2. Step 2: Convert to fraction form
    8,316.53/11,474.01 = 5,172.53/x
  3. Step 3: Cross multiply
    8,316.53x = 11,474.01 × 5,172.53
  4. Step 4: Simplify right side
    8,316.53x = 59,349,660.95
  5. Step 5: Solve for x
    x = 59,349,660.95/8,316.53
  6. Step 6: Final answer
    x = 7,136.35

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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.