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Finding the Fourth Proportional to 15,761.03, 21,754.53 and 9,047.25

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Solution

The fourth proportional to 15,761.03, 21,754.53 and 9,047.25 is: 12,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761.03 : 21,754.53 = 9,047.25 : x
  2. Step 2: Convert to fraction form
    15,761.03/21,754.53 = 9,047.25/x
  3. Step 3: Cross multiply
    15,761.03x = 21,754.53 × 9,047.25
  4. Step 4: Simplify right side
    15,761.03x = 196,818,671.54
  5. Step 5: Solve for x
    x = 196,818,671.54/15,761.03
  6. Step 6: Final answer
    x = 12,487.68

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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.