Home / 11,930.88-17,904.48-4,139.64

Finding the Fourth Proportional to 11,930.88, 17,904.48 and 4,139.64

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Solution

The fourth proportional to 11,930.88, 17,904.48 and 4,139.64 is: 6,212.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.88 : 17,904.48 = 4,139.64 : x
  2. Step 2: Convert to fraction form
    11,930.88/17,904.48 = 4,139.64/x
  3. Step 3: Cross multiply
    11,930.88x = 17,904.48 × 4,139.64
  4. Step 4: Simplify right side
    11,930.88x = 74,118,101.59
  5. Step 5: Solve for x
    x = 74,118,101.59/11,930.88
  6. Step 6: Final answer
    x = 6,212.29

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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.