Home / 15,015.78-22,516.23-8,777.36

Finding the Fourth Proportional to 15,015.78, 22,516.23 and 8,777.36

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Solution

The fourth proportional to 15,015.78, 22,516.23 and 8,777.36 is: 13,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.78 : 22,516.23 = 8,777.36 : x
  2. Step 2: Convert to fraction form
    15,015.78/22,516.23 = 8,777.36/x
  3. Step 3: Cross multiply
    15,015.78x = 22,516.23 × 8,777.36
  4. Step 4: Simplify right side
    15,015.78x = 197,633,056.55
  5. Step 5: Solve for x
    x = 197,633,056.55/15,015.78
  6. Step 6: Final answer
    x = 13,161.69

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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.