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Finding the Fourth Proportional to 17,170.40, 25,764.40 and 13,009.04

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Solution

The fourth proportional to 17,170.40, 25,764.40 and 13,009.04 is: 19,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,170.40 : 25,764.40 = 13,009.04 : x
  2. Step 2: Convert to fraction form
    17,170.40/25,764.40 = 13,009.04/x
  3. Step 3: Cross multiply
    17,170.40x = 25,764.40 × 13,009.04
  4. Step 4: Simplify right side
    17,170.40x = 335,170,110.18
  5. Step 5: Solve for x
    x = 335,170,110.18/17,170.40
  6. Step 6: Final answer
    x = 19,520.23

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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.