Home / 9,119.37-13,679.05-2,193.87

Finding the Fourth Proportional to 9,119.37, 13,679.05 and 2,193.87

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Solution

The fourth proportional to 9,119.37, 13,679.05 and 2,193.87 is: 3,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.37 : 13,679.05 = 2,193.87 : x
  2. Step 2: Convert to fraction form
    9,119.37/13,679.05 = 2,193.87/x
  3. Step 3: Cross multiply
    9,119.37x = 13,679.05 × 2,193.87
  4. Step 4: Simplify right side
    9,119.37x = 30,009,983.54
  5. Step 5: Solve for x
    x = 30,009,983.54/9,119.37
  6. Step 6: Final answer
    x = 3,290.80

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1.5x scale

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.