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Finding the Fourth Proportional to 12,061.94, 16,640.68 and 7,521.95

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Solution

The fourth proportional to 12,061.94, 16,640.68 and 7,521.95 is: 10,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,061.94 : 16,640.68 = 7,521.95 : x
  2. Step 2: Convert to fraction form
    12,061.94/16,640.68 = 7,521.95/x
  3. Step 3: Cross multiply
    12,061.94x = 16,640.68 × 7,521.95
  4. Step 4: Simplify right side
    12,061.94x = 125,170,289.13
  5. Step 5: Solve for x
    x = 125,170,289.13/12,061.94
  6. Step 6: Final answer
    x = 10,377.30

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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.