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Finding the Fourth Proportional to 14,328.12, 19,772.88 and 7,954.94

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Solution

The fourth proportional to 14,328.12, 19,772.88 and 7,954.94 is: 10,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.12 : 19,772.88 = 7,954.94 : x
  2. Step 2: Convert to fraction form
    14,328.12/19,772.88 = 7,954.94/x
  3. Step 3: Cross multiply
    14,328.12x = 19,772.88 × 7,954.94
  4. Step 4: Simplify right side
    14,328.12x = 157,292,074.03
  5. Step 5: Solve for x
    x = 157,292,074.03/14,328.12
  6. Step 6: Final answer
    x = 10,977.86

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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.