Home / 10,509.21-15,766.92-4,268.03

Finding the Fourth Proportional to 10,509.21, 15,766.92 and 4,268.03

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Solution

The fourth proportional to 10,509.21, 15,766.92 and 4,268.03 is: 6,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.21 : 15,766.92 = 4,268.03 : x
  2. Step 2: Convert to fraction form
    10,509.21/15,766.92 = 4,268.03/x
  3. Step 3: Cross multiply
    10,509.21x = 15,766.92 × 4,268.03
  4. Step 4: Simplify right side
    10,509.21x = 67,293,608.73
  5. Step 5: Solve for x
    x = 67,293,608.73/10,509.21
  6. Step 6: Final answer
    x = 6,403.30

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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.