Home / 7,140.39-10,712.43-4,181.33

Finding the Fourth Proportional to 7,140.39, 10,712.43 and 4,181.33

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Solution

The fourth proportional to 7,140.39, 10,712.43 and 4,181.33 is: 6,273.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.39 : 10,712.43 = 4,181.33 : x
  2. Step 2: Convert to fraction form
    7,140.39/10,712.43 = 4,181.33/x
  3. Step 3: Cross multiply
    7,140.39x = 10,712.43 × 4,181.33
  4. Step 4: Simplify right side
    7,140.39x = 44,792,151.37
  5. Step 5: Solve for x
    x = 44,792,151.37/7,140.39
  6. Step 6: Final answer
    x = 6,273.07

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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.