Home / 17,142.13-25,686.60-11,887.39

Finding the Fourth Proportional to 17,142.13, 25,686.60 and 11,887.39

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Solution

The fourth proportional to 17,142.13, 25,686.60 and 11,887.39 is: 17,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,142.13 : 25,686.60 = 11,887.39 : x
  2. Step 2: Convert to fraction form
    17,142.13/25,686.60 = 11,887.39/x
  3. Step 3: Cross multiply
    17,142.13x = 25,686.60 × 11,887.39
  4. Step 4: Simplify right side
    17,142.13x = 305,346,631.97
  5. Step 5: Solve for x
    x = 305,346,631.97/17,142.13
  6. Step 6: Final answer
    x = 17,812.64

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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.