Home / 10,644.20-15,956.46-5,438.60

Finding the Fourth Proportional to 10,644.20, 15,956.46 and 5,438.60

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Solution

The fourth proportional to 10,644.20, 15,956.46 and 5,438.60 is: 8,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.20 : 15,956.46 = 5,438.60 : x
  2. Step 2: Convert to fraction form
    10,644.20/15,956.46 = 5,438.60/x
  3. Step 3: Cross multiply
    10,644.20x = 15,956.46 × 5,438.60
  4. Step 4: Simplify right side
    10,644.20x = 86,780,803.36
  5. Step 5: Solve for x
    x = 86,780,803.36/10,644.20
  6. Step 6: Final answer
    x = 8,152.87

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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.