Home / 17,420.28-26,111.06-8,661.56

Finding the Fourth Proportional to 17,420.28, 26,111.06 and 8,661.56

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Solution

The fourth proportional to 17,420.28, 26,111.06 and 8,661.56 is: 12,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,420.28 : 26,111.06 = 8,661.56 : x
  2. Step 2: Convert to fraction form
    17,420.28/26,111.06 = 8,661.56/x
  3. Step 3: Cross multiply
    17,420.28x = 26,111.06 × 8,661.56
  4. Step 4: Simplify right side
    17,420.28x = 226,162,512.85
  5. Step 5: Solve for x
    x = 226,162,512.85/17,420.28
  6. Step 6: Final answer
    x = 12,982.71

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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.