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Finding the Fourth Proportional to 12,492.48, 17,232.48 and 7,773.12

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Solution

The fourth proportional to 12,492.48, 17,232.48 and 7,773.12 is: 10,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.48 : 17,232.48 = 7,773.12 : x
  2. Step 2: Convert to fraction form
    12,492.48/17,232.48 = 7,773.12/x
  3. Step 3: Cross multiply
    12,492.48x = 17,232.48 × 7,773.12
  4. Step 4: Simplify right side
    12,492.48x = 133,950,134.94
  5. Step 5: Solve for x
    x = 133,950,134.94/12,492.48
  6. Step 6: Final answer
    x = 10,722.46

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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.