Home / 10,419.53-15,629.80-3,399.54

Finding the Fourth Proportional to 10,419.53, 15,629.80 and 3,399.54

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Solution

The fourth proportional to 10,419.53, 15,629.80 and 3,399.54 is: 5,099.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.53 : 15,629.80 = 3,399.54 : x
  2. Step 2: Convert to fraction form
    10,419.53/15,629.80 = 3,399.54/x
  3. Step 3: Cross multiply
    10,419.53x = 15,629.80 × 3,399.54
  4. Step 4: Simplify right side
    10,419.53x = 53,134,064.77
  5. Step 5: Solve for x
    x = 53,134,064.77/10,419.53
  6. Step 6: Final answer
    x = 5,099.47

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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.