Home / 14,921.29-20,589.78-8,632.49

Finding the Fourth Proportional to 14,921.29, 20,589.78 and 8,632.49

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Solution

The fourth proportional to 14,921.29, 20,589.78 and 8,632.49 is: 11,911.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.29 : 20,589.78 = 8,632.49 : x
  2. Step 2: Convert to fraction form
    14,921.29/20,589.78 = 8,632.49/x
  3. Step 3: Cross multiply
    14,921.29x = 20,589.78 × 8,632.49
  4. Step 4: Simplify right side
    14,921.29x = 177,741,069.95
  5. Step 5: Solve for x
    x = 177,741,069.95/14,921.29
  6. Step 6: Final answer
    x = 11,911.91

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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.