Home / 11,409.63-15,743.87-6,372.51

Finding the Fourth Proportional to 11,409.63, 15,743.87 and 6,372.51

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Solution

The fourth proportional to 11,409.63, 15,743.87 and 6,372.51 is: 8,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.63 : 15,743.87 = 6,372.51 : x
  2. Step 2: Convert to fraction form
    11,409.63/15,743.87 = 6,372.51/x
  3. Step 3: Cross multiply
    11,409.63x = 15,743.87 × 6,372.51
  4. Step 4: Simplify right side
    11,409.63x = 100,327,937.15
  5. Step 5: Solve for x
    x = 100,327,937.15/11,409.63
  6. Step 6: Final answer
    x = 8,793.27

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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.