Home / 11,930.40-17,879.52-9,301.08

Finding the Fourth Proportional to 11,930.40, 17,879.52 and 9,301.08

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Solution

The fourth proportional to 11,930.40, 17,879.52 and 9,301.08 is: 13,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.40 : 17,879.52 = 9,301.08 : x
  2. Step 2: Convert to fraction form
    11,930.40/17,879.52 = 9,301.08/x
  3. Step 3: Cross multiply
    11,930.40x = 17,879.52 × 9,301.08
  4. Step 4: Simplify right side
    11,930.40x = 166,298,845.88
  5. Step 5: Solve for x
    x = 166,298,845.88/11,930.40
  6. Step 6: Final answer
    x = 13,939.08

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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.