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Finding the Fourth Proportional to 7,191.54, 9,925.72 and 4,047.73

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Solution

The fourth proportional to 7,191.54, 9,925.72 and 4,047.73 is: 5,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.54 : 9,925.72 = 4,047.73 : x
  2. Step 2: Convert to fraction form
    7,191.54/9,925.72 = 4,047.73/x
  3. Step 3: Cross multiply
    7,191.54x = 9,925.72 × 4,047.73
  4. Step 4: Simplify right side
    7,191.54x = 40,176,599.68
  5. Step 5: Solve for x
    x = 40,176,599.68/7,191.54
  6. Step 6: Final answer
    x = 5,586.65

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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.