Home / 10,419.76-15,629.23-4,177.90

Finding the Fourth Proportional to 10,419.76, 15,629.23 and 4,177.90

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Solution

The fourth proportional to 10,419.76, 15,629.23 and 4,177.90 is: 6,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.76 : 15,629.23 = 4,177.90 : x
  2. Step 2: Convert to fraction form
    10,419.76/15,629.23 = 4,177.90/x
  3. Step 3: Cross multiply
    10,419.76x = 15,629.23 × 4,177.90
  4. Step 4: Simplify right side
    10,419.76x = 65,297,360.02
  5. Step 5: Solve for x
    x = 65,297,360.02/10,419.76
  6. Step 6: Final answer
    x = 6,266.69

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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.