Home / 11,388.42-15,709.70-6,671.79

Finding the Fourth Proportional to 11,388.42, 15,709.70 and 6,671.79

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Solution

The fourth proportional to 11,388.42, 15,709.70 and 6,671.79 is: 9,203.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.42 : 15,709.70 = 6,671.79 : x
  2. Step 2: Convert to fraction form
    11,388.42/15,709.70 = 6,671.79/x
  3. Step 3: Cross multiply
    11,388.42x = 15,709.70 × 6,671.79
  4. Step 4: Simplify right side
    11,388.42x = 104,811,786.00
  5. Step 5: Solve for x
    x = 104,811,786.00/11,388.42
  6. Step 6: Final answer
    x = 9,203.36

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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.