Home / 14,660.15-20,229.99-8,287.06

Finding the Fourth Proportional to 14,660.15, 20,229.99 and 8,287.06

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Solution

The fourth proportional to 14,660.15, 20,229.99 and 8,287.06 is: 11,435.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,660.15 : 20,229.99 = 8,287.06 : x
  2. Step 2: Convert to fraction form
    14,660.15/20,229.99 = 8,287.06/x
  3. Step 3: Cross multiply
    14,660.15x = 20,229.99 × 8,287.06
  4. Step 4: Simplify right side
    14,660.15x = 167,647,111.07
  5. Step 5: Solve for x
    x = 167,647,111.07/14,660.15
  6. Step 6: Final answer
    x = 11,435.56

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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.