Home / 13,787.45-20,691.61-10,099.27

Finding the Fourth Proportional to 13,787.45, 20,691.61 and 10,099.27

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Solution

The fourth proportional to 13,787.45, 20,691.61 and 10,099.27 is: 15,156.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.45 : 20,691.61 = 10,099.27 : x
  2. Step 2: Convert to fraction form
    13,787.45/20,691.61 = 10,099.27/x
  3. Step 3: Cross multiply
    13,787.45x = 20,691.61 × 10,099.27
  4. Step 4: Simplify right side
    13,787.45x = 208,970,052.67
  5. Step 5: Solve for x
    x = 208,970,052.67/13,787.45
  6. Step 6: Final answer
    x = 15,156.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.