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Finding the Fourth Proportional to 7,889.54, 10,887.28 and 4,352.74

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Solution

The fourth proportional to 7,889.54, 10,887.28 and 4,352.74 is: 6,006.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.54 : 10,887.28 = 4,352.74 : x
  2. Step 2: Convert to fraction form
    7,889.54/10,887.28 = 4,352.74/x
  3. Step 3: Cross multiply
    7,889.54x = 10,887.28 × 4,352.74
  4. Step 4: Simplify right side
    7,889.54x = 47,389,461.05
  5. Step 5: Solve for x
    x = 47,389,461.05/7,889.54
  6. Step 6: Final answer
    x = 6,006.62

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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.