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Finding the Fourth Proportional to 12,752.52, 19,136.16 and 5,356.32

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Solution

The fourth proportional to 12,752.52, 19,136.16 and 5,356.32 is: 8,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.52 : 19,136.16 = 5,356.32 : x
  2. Step 2: Convert to fraction form
    12,752.52/19,136.16 = 5,356.32/x
  3. Step 3: Cross multiply
    12,752.52x = 19,136.16 × 5,356.32
  4. Step 4: Simplify right side
    12,752.52x = 102,499,396.53
  5. Step 5: Solve for x
    x = 102,499,396.53/12,752.52
  6. Step 6: Final answer
    x = 8,037.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.