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Finding the Fourth Proportional to 14,043.68, 21,059.25 and 5,272.40

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Solution

The fourth proportional to 14,043.68, 21,059.25 and 5,272.40 is: 7,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.68 : 21,059.25 = 5,272.40 : x
  2. Step 2: Convert to fraction form
    14,043.68/21,059.25 = 5,272.40/x
  3. Step 3: Cross multiply
    14,043.68x = 21,059.25 × 5,272.40
  4. Step 4: Simplify right side
    14,043.68x = 111,032,684.40
  5. Step 5: Solve for x
    x = 111,032,684.40/14,043.68
  6. Step 6: Final answer
    x = 7,906.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.