Home / 6,939.12-10,398.36-4,162.53

Finding the Fourth Proportional to 6,939.12, 10,398.36 and 4,162.53

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Solution

The fourth proportional to 6,939.12, 10,398.36 and 4,162.53 is: 6,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.12 : 10,398.36 = 4,162.53 : x
  2. Step 2: Convert to fraction form
    6,939.12/10,398.36 = 4,162.53/x
  3. Step 3: Cross multiply
    6,939.12x = 10,398.36 × 4,162.53
  4. Step 4: Simplify right side
    6,939.12x = 43,283,485.45
  5. Step 5: Solve for x
    x = 43,283,485.45/6,939.12
  6. Step 6: Final answer
    x = 6,237.60

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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.