Home / 8,119.54-12,180.57-2,926.63

Finding the Fourth Proportional to 8,119.54, 12,180.57 and 2,926.63

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Solution

The fourth proportional to 8,119.54, 12,180.57 and 2,926.63 is: 4,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.54 : 12,180.57 = 2,926.63 : x
  2. Step 2: Convert to fraction form
    8,119.54/12,180.57 = 2,926.63/x
  3. Step 3: Cross multiply
    8,119.54x = 12,180.57 × 2,926.63
  4. Step 4: Simplify right side
    8,119.54x = 35,648,021.58
  5. Step 5: Solve for x
    x = 35,648,021.58/8,119.54
  6. Step 6: Final answer
    x = 4,390.40

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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.