Home / 11,729.36-17,578.74-8,945.84

Finding the Fourth Proportional to 11,729.36, 17,578.74 and 8,945.84

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Solution

The fourth proportional to 11,729.36, 17,578.74 and 8,945.84 is: 13,407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.36 : 17,578.74 = 8,945.84 : x
  2. Step 2: Convert to fraction form
    11,729.36/17,578.74 = 8,945.84/x
  3. Step 3: Cross multiply
    11,729.36x = 17,578.74 × 8,945.84
  4. Step 4: Simplify right side
    11,729.36x = 157,256,595.44
  5. Step 5: Solve for x
    x = 157,256,595.44/11,729.36
  6. Step 6: Final answer
    x = 13,407.09

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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.