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Finding the Fourth Proportional to 17,161.80, 25,742.70 and 7,301.40

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Solution

The fourth proportional to 17,161.80, 25,742.70 and 7,301.40 is: 10,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,161.80 : 25,742.70 = 7,301.40 : x
  2. Step 2: Convert to fraction form
    17,161.80/25,742.70 = 7,301.40/x
  3. Step 3: Cross multiply
    17,161.80x = 25,742.70 × 7,301.40
  4. Step 4: Simplify right side
    17,161.80x = 187,957,749.78
  5. Step 5: Solve for x
    x = 187,957,749.78/17,161.80
  6. Step 6: Final answer
    x = 10,952.10

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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.