Home / 10,380.18-15,561.62-4,830.60

Finding the Fourth Proportional to 10,380.18, 15,561.62 and 4,830.60

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Solution

The fourth proportional to 10,380.18, 15,561.62 and 4,830.60 is: 7,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.18 : 15,561.62 = 4,830.60 : x
  2. Step 2: Convert to fraction form
    10,380.18/15,561.62 = 4,830.60/x
  3. Step 3: Cross multiply
    10,380.18x = 15,561.62 × 4,830.60
  4. Step 4: Simplify right side
    10,380.18x = 75,171,961.57
  5. Step 5: Solve for x
    x = 75,171,961.57/10,380.18
  6. Step 6: Final answer
    x = 7,241.87

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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.