Home / 17,137.72-23,661.30-11,479.78

Finding the Fourth Proportional to 17,137.72, 23,661.30 and 11,479.78

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Solution

The fourth proportional to 17,137.72, 23,661.30 and 11,479.78 is: 15,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,137.72 : 23,661.30 = 11,479.78 : x
  2. Step 2: Convert to fraction form
    17,137.72/23,661.30 = 11,479.78/x
  3. Step 3: Cross multiply
    17,137.72x = 23,661.30 × 11,479.78
  4. Step 4: Simplify right side
    17,137.72x = 271,626,518.51
  5. Step 5: Solve for x
    x = 271,626,518.51/17,137.72
  6. Step 6: Final answer
    x = 15,849.63

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1.5x scale

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.