Home / 13,576.20-18,737.46-7,989.96

Finding the Fourth Proportional to 13,576.20, 18,737.46 and 7,989.96

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Solution

The fourth proportional to 13,576.20, 18,737.46 and 7,989.96 is: 11,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.20 : 18,737.46 = 7,989.96 : x
  2. Step 2: Convert to fraction form
    13,576.20/18,737.46 = 7,989.96/x
  3. Step 3: Cross multiply
    13,576.20x = 18,737.46 × 7,989.96
  4. Step 4: Simplify right side
    13,576.20x = 149,711,555.90
  5. Step 5: Solve for x
    x = 149,711,555.90/13,576.20
  6. Step 6: Final answer
    x = 11,027.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.