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Finding the Fourth Proportional to 15,796.77, 21,799.55 and 8,723.19

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Solution

The fourth proportional to 15,796.77, 21,799.55 and 8,723.19 is: 12,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.77 : 21,799.55 = 8,723.19 : x
  2. Step 2: Convert to fraction form
    15,796.77/21,799.55 = 8,723.19/x
  3. Step 3: Cross multiply
    15,796.77x = 21,799.55 × 8,723.19
  4. Step 4: Simplify right side
    15,796.77x = 190,161,671.05
  5. Step 5: Solve for x
    x = 190,161,671.05/15,796.77
  6. Step 6: Final answer
    x = 12,038.01

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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.