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Finding the Fourth Proportional to 15,958.80, 22,023.36 and 8,885.40

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Solution

The fourth proportional to 15,958.80, 22,023.36 and 8,885.40 is: 12,261.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.80 : 22,023.36 = 8,885.40 : x
  2. Step 2: Convert to fraction form
    15,958.80/22,023.36 = 8,885.40/x
  3. Step 3: Cross multiply
    15,958.80x = 22,023.36 × 8,885.40
  4. Step 4: Simplify right side
    15,958.80x = 195,686,362.94
  5. Step 5: Solve for x
    x = 195,686,362.94/15,958.80
  6. Step 6: Final answer
    x = 12,261.97

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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.