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Finding the Fourth Proportional to 12,192.84, 16,826.20 and 6,603.84

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Solution

The fourth proportional to 12,192.84, 16,826.20 and 6,603.84 is: 9,113.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.84 : 16,826.20 = 6,603.84 : x
  2. Step 2: Convert to fraction form
    12,192.84/16,826.20 = 6,603.84/x
  3. Step 3: Cross multiply
    12,192.84x = 16,826.20 × 6,603.84
  4. Step 4: Simplify right side
    12,192.84x = 111,117,532.61
  5. Step 5: Solve for x
    x = 111,117,532.61/12,192.84
  6. Step 6: Final answer
    x = 9,113.34

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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.