Home / 11,218.42-15,477.81-6,743.86

Finding the Fourth Proportional to 11,218.42, 15,477.81 and 6,743.86

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Solution

The fourth proportional to 11,218.42, 15,477.81 and 6,743.86 is: 9,304.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.42 : 15,477.81 = 6,743.86 : x
  2. Step 2: Convert to fraction form
    11,218.42/15,477.81 = 6,743.86/x
  3. Step 3: Cross multiply
    11,218.42x = 15,477.81 × 6,743.86
  4. Step 4: Simplify right side
    11,218.42x = 104,380,183.75
  5. Step 5: Solve for x
    x = 104,380,183.75/11,218.42
  6. Step 6: Final answer
    x = 9,304.36

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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.