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Finding the Fourth Proportional to 14,961.94, 20,647.08 and 8,247.59

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Solution

The fourth proportional to 14,961.94, 20,647.08 and 8,247.59 is: 11,381.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.94 : 20,647.08 = 8,247.59 : x
  2. Step 2: Convert to fraction form
    14,961.94/20,647.08 = 8,247.59/x
  3. Step 3: Cross multiply
    14,961.94x = 20,647.08 × 8,247.59
  4. Step 4: Simplify right side
    14,961.94x = 170,288,601.53
  5. Step 5: Solve for x
    x = 170,288,601.53/14,961.94
  6. Step 6: Final answer
    x = 11,381.45

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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.