Home / 14,115.86-19,480.77-8,148.62

Finding the Fourth Proportional to 14,115.86, 19,480.77 and 8,148.62

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Solution

The fourth proportional to 14,115.86, 19,480.77 and 8,148.62 is: 11,245.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.86 : 19,480.77 = 8,148.62 : x
  2. Step 2: Convert to fraction form
    14,115.86/19,480.77 = 8,148.62/x
  3. Step 3: Cross multiply
    14,115.86x = 19,480.77 × 8,148.62
  4. Step 4: Simplify right side
    14,115.86x = 158,741,392.04
  5. Step 5: Solve for x
    x = 158,741,392.04/14,115.86
  6. Step 6: Final answer
    x = 11,245.61

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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.