Home / 8,119.86-12,169.98-3,953.62

Finding the Fourth Proportional to 8,119.86, 12,169.98 and 3,953.62

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Solution

The fourth proportional to 8,119.86, 12,169.98 and 3,953.62 is: 5,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.86 : 12,169.98 = 3,953.62 : x
  2. Step 2: Convert to fraction form
    8,119.86/12,169.98 = 3,953.62/x
  3. Step 3: Cross multiply
    8,119.86x = 12,169.98 × 3,953.62
  4. Step 4: Simplify right side
    8,119.86x = 48,115,476.33
  5. Step 5: Solve for x
    x = 48,115,476.33/8,119.86
  6. Step 6: Final answer
    x = 5,925.65

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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.