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Finding the Fourth Proportional to 15,091.94, 20,824.66 and 8,377.62

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Solution

The fourth proportional to 15,091.94, 20,824.66 and 8,377.62 is: 11,559.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.94 : 20,824.66 = 8,377.62 : x
  2. Step 2: Convert to fraction form
    15,091.94/20,824.66 = 8,377.62/x
  3. Step 3: Cross multiply
    15,091.94x = 20,824.66 × 8,377.62
  4. Step 4: Simplify right side
    15,091.94x = 174,461,088.11
  5. Step 5: Solve for x
    x = 174,461,088.11/15,091.94
  6. Step 6: Final answer
    x = 11,559.88

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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.