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Finding the Fourth Proportional to 15,153.57, 22,735.83 and 7,761.51

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Solution

The fourth proportional to 15,153.57, 22,735.83 and 7,761.51 is: 11,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,153.57 : 22,735.83 = 7,761.51 : x
  2. Step 2: Convert to fraction form
    15,153.57/22,735.83 = 7,761.51/x
  3. Step 3: Cross multiply
    15,153.57x = 22,735.83 × 7,761.51
  4. Step 4: Simplify right side
    15,153.57x = 176,464,371.90
  5. Step 5: Solve for x
    x = 176,464,371.90/15,153.57
  6. Step 6: Final answer
    x = 11,645.07

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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.