Home / 18,371.28-27,513.12-10,038.80

Finding the Fourth Proportional to 18,371.28, 27,513.12 and 10,038.80

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Solution

The fourth proportional to 18,371.28, 27,513.12 and 10,038.80 is: 15,034.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.28 : 27,513.12 = 10,038.80 : x
  2. Step 2: Convert to fraction form
    18,371.28/27,513.12 = 10,038.80/x
  3. Step 3: Cross multiply
    18,371.28x = 27,513.12 × 10,038.80
  4. Step 4: Simplify right side
    18,371.28x = 276,198,709.06
  5. Step 5: Solve for x
    x = 276,198,709.06/18,371.28
  6. Step 6: Final answer
    x = 15,034.27

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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.