Home / 10,416.15-15,625.85-3,489.03

Finding the Fourth Proportional to 10,416.15, 15,625.85 and 3,489.03

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Solution

The fourth proportional to 10,416.15, 15,625.85 and 3,489.03 is: 5,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,416.15 : 15,625.85 = 3,489.03 : x
  2. Step 2: Convert to fraction form
    10,416.15/15,625.85 = 3,489.03/x
  3. Step 3: Cross multiply
    10,416.15x = 15,625.85 × 3,489.03
  4. Step 4: Simplify right side
    10,416.15x = 54,519,041.98
  5. Step 5: Solve for x
    x = 54,519,041.98/10,416.15
  6. Step 6: Final answer
    x = 5,234.09

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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.