Home / 10,420.44-14,380.23-5,704.62

Finding the Fourth Proportional to 10,420.44, 14,380.23 and 5,704.62

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Solution

The fourth proportional to 10,420.44, 14,380.23 and 5,704.62 is: 7,872.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.44 : 14,380.23 = 5,704.62 : x
  2. Step 2: Convert to fraction form
    10,420.44/14,380.23 = 5,704.62/x
  3. Step 3: Cross multiply
    10,420.44x = 14,380.23 × 5,704.62
  4. Step 4: Simplify right side
    10,420.44x = 82,033,747.66
  5. Step 5: Solve for x
    x = 82,033,747.66/10,420.44
  6. Step 6: Final answer
    x = 7,872.39

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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.