Home / 18,201.36-25,117.92-10,243.68

Finding the Fourth Proportional to 18,201.36, 25,117.92 and 10,243.68

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Solution

The fourth proportional to 18,201.36, 25,117.92 and 10,243.68 is: 14,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.36 : 25,117.92 = 10,243.68 : x
  2. Step 2: Convert to fraction form
    18,201.36/25,117.92 = 10,243.68/x
  3. Step 3: Cross multiply
    18,201.36x = 25,117.92 × 10,243.68
  4. Step 4: Simplify right side
    18,201.36x = 257,299,934.75
  5. Step 5: Solve for x
    x = 257,299,934.75/18,201.36
  6. Step 6: Final answer
    x = 14,136.30

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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.