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Finding the Fourth Proportional to 14,475.25, 19,975.85 and 7,851.25

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Solution

The fourth proportional to 14,475.25, 19,975.85 and 7,851.25 is: 10,834.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,475.25 : 19,975.85 = 7,851.25 : x
  2. Step 2: Convert to fraction form
    14,475.25/19,975.85 = 7,851.25/x
  3. Step 3: Cross multiply
    14,475.25x = 19,975.85 × 7,851.25
  4. Step 4: Simplify right side
    14,475.25x = 156,835,392.31
  5. Step 5: Solve for x
    x = 156,835,392.31/14,475.25
  6. Step 6: Final answer
    x = 10,834.73

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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.