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Finding the Fourth Proportional to 14,904.84, 20,568.71 and 8,190.48

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Solution

The fourth proportional to 14,904.84, 20,568.71 and 8,190.48 is: 11,302.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,904.84 : 20,568.71 = 8,190.48 : x
  2. Step 2: Convert to fraction form
    14,904.84/20,568.71 = 8,190.48/x
  3. Step 3: Cross multiply
    14,904.84x = 20,568.71 × 8,190.48
  4. Step 4: Simplify right side
    14,904.84x = 168,467,566.93
  5. Step 5: Solve for x
    x = 168,467,566.93/14,904.84
  6. Step 6: Final answer
    x = 11,302.88

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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.