Home / 11,829.78-17,739.54-6,281.91

Finding the Fourth Proportional to 11,829.78, 17,739.54 and 6,281.91

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Solution

The fourth proportional to 11,829.78, 17,739.54 and 6,281.91 is: 9,420.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.78 : 17,739.54 = 6,281.91 : x
  2. Step 2: Convert to fraction form
    11,829.78/17,739.54 = 6,281.91/x
  3. Step 3: Cross multiply
    11,829.78x = 17,739.54 × 6,281.91
  4. Step 4: Simplify right side
    11,829.78x = 111,438,193.72
  5. Step 5: Solve for x
    x = 111,438,193.72/11,829.78
  6. Step 6: Final answer
    x = 9,420.14

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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.