Home / 13,840.67-19,101.16-7,874.27

Finding the Fourth Proportional to 13,840.67, 19,101.16 and 7,874.27

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Solution

The fourth proportional to 13,840.67, 19,101.16 and 7,874.27 is: 10,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.67 : 19,101.16 = 7,874.27 : x
  2. Step 2: Convert to fraction form
    13,840.67/19,101.16 = 7,874.27/x
  3. Step 3: Cross multiply
    13,840.67x = 19,101.16 × 7,874.27
  4. Step 4: Simplify right side
    13,840.67x = 150,407,556.28
  5. Step 5: Solve for x
    x = 150,407,556.28/13,840.67
  6. Step 6: Final answer
    x = 10,867.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.