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Finding the Fourth Proportional to 14,969.20, 20,657.32 and 8,254.48

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Solution

The fourth proportional to 14,969.20, 20,657.32 and 8,254.48 is: 11,391.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969.20 : 20,657.32 = 8,254.48 : x
  2. Step 2: Convert to fraction form
    14,969.20/20,657.32 = 8,254.48/x
  3. Step 3: Cross multiply
    14,969.20x = 20,657.32 × 8,254.48
  4. Step 4: Simplify right side
    14,969.20x = 170,515,434.79
  5. Step 5: Solve for x
    x = 170,515,434.79/14,969.20
  6. Step 6: Final answer
    x = 11,391.09

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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.