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Finding the Fourth Proportional to 11,228.85, 15,487.07 and 7,250.94

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Solution

The fourth proportional to 11,228.85, 15,487.07 and 7,250.94 is: 10,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.85 : 15,487.07 = 7,250.94 : x
  2. Step 2: Convert to fraction form
    11,228.85/15,487.07 = 7,250.94/x
  3. Step 3: Cross multiply
    11,228.85x = 15,487.07 × 7,250.94
  4. Step 4: Simplify right side
    11,228.85x = 112,295,779.09
  5. Step 5: Solve for x
    x = 112,295,779.09/11,228.85
  6. Step 6: Final answer
    x = 10,000.65

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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.