Home / 17,412.28-26,119.68-8,638.36

Finding the Fourth Proportional to 17,412.28, 26,119.68 and 8,638.36

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Solution

The fourth proportional to 17,412.28, 26,119.68 and 8,638.36 is: 12,958.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,412.28 : 26,119.68 = 8,638.36 : x
  2. Step 2: Convert to fraction form
    17,412.28/26,119.68 = 8,638.36/x
  3. Step 3: Cross multiply
    17,412.28x = 26,119.68 × 8,638.36
  4. Step 4: Simplify right side
    17,412.28x = 225,631,198.92
  5. Step 5: Solve for x
    x = 225,631,198.92/17,412.28
  6. Step 6: Final answer
    x = 12,958.17

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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.