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Finding the Fourth Proportional to 11,228.68, 15,492.36 and 7,252.12

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Solution

The fourth proportional to 11,228.68, 15,492.36 and 7,252.12 is: 10,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.68 : 15,492.36 = 7,252.12 : x
  2. Step 2: Convert to fraction form
    11,228.68/15,492.36 = 7,252.12/x
  3. Step 3: Cross multiply
    11,228.68x = 15,492.36 × 7,252.12
  4. Step 4: Simplify right side
    11,228.68x = 112,352,453.80
  5. Step 5: Solve for x
    x = 112,352,453.80/11,228.68
  6. Step 6: Final answer
    x = 10,005.85

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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.