Home / 10,416.05-15,628.34-5,490.04

Finding the Fourth Proportional to 10,416.05, 15,628.34 and 5,490.04

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Solution

The fourth proportional to 10,416.05, 15,628.34 and 5,490.04 is: 8,237.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,416.05 : 15,628.34 = 5,490.04 : x
  2. Step 2: Convert to fraction form
    10,416.05/15,628.34 = 5,490.04/x
  3. Step 3: Cross multiply
    10,416.05x = 15,628.34 × 5,490.04
  4. Step 4: Simplify right side
    10,416.05x = 85,800,211.73
  5. Step 5: Solve for x
    x = 85,800,211.73/10,416.05
  6. Step 6: Final answer
    x = 8,237.31

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