Home / 18,195.89-25,109.36-10,238.63

Finding the Fourth Proportional to 18,195.89, 25,109.36 and 10,238.63

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Solution

The fourth proportional to 18,195.89, 25,109.36 and 10,238.63 is: 14,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.89 : 25,109.36 = 10,238.63 : x
  2. Step 2: Convert to fraction form
    18,195.89/25,109.36 = 10,238.63/x
  3. Step 3: Cross multiply
    18,195.89x = 25,109.36 × 10,238.63
  4. Step 4: Simplify right side
    18,195.89x = 257,085,308.23
  5. Step 5: Solve for x
    x = 257,085,308.23/18,195.89
  6. Step 6: Final answer
    x = 14,128.76

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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.