Home / 6,926.20-10,387.38-1,994.50

Finding the Fourth Proportional to 6,926.20, 10,387.38 and 1,994.50

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Solution

The fourth proportional to 6,926.20, 10,387.38 and 1,994.50 is: 2,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,926.20 : 10,387.38 = 1,994.50 : x
  2. Step 2: Convert to fraction form
    6,926.20/10,387.38 = 1,994.50/x
  3. Step 3: Cross multiply
    6,926.20x = 10,387.38 × 1,994.50
  4. Step 4: Simplify right side
    6,926.20x = 20,717,629.41
  5. Step 5: Solve for x
    x = 20,717,629.41/6,926.20
  6. Step 6: Final answer
    x = 2,991.20

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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.