Home / 6,433.12-9,642.60-4,209.28

Finding the Fourth Proportional to 6,433.12, 9,642.60 and 4,209.28

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Solution

The fourth proportional to 6,433.12, 9,642.60 and 4,209.28 is: 6,309.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,433.12 : 9,642.60 = 4,209.28 : x
  2. Step 2: Convert to fraction form
    6,433.12/9,642.60 = 4,209.28/x
  3. Step 3: Cross multiply
    6,433.12x = 9,642.60 × 4,209.28
  4. Step 4: Simplify right side
    6,433.12x = 40,588,403.33
  5. Step 5: Solve for x
    x = 40,588,403.33/6,433.12
  6. Step 6: Final answer
    x = 6,309.29

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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.