Home / 12,119.21-16,724.41-6,741.71

Finding the Fourth Proportional to 12,119.21, 16,724.41 and 6,741.71

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Solution

The fourth proportional to 12,119.21, 16,724.41 and 6,741.71 is: 9,303.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.21 : 16,724.41 = 6,741.71 : x
  2. Step 2: Convert to fraction form
    12,119.21/16,724.41 = 6,741.71/x
  3. Step 3: Cross multiply
    12,119.21x = 16,724.41 × 6,741.71
  4. Step 4: Simplify right side
    12,119.21x = 112,751,122.14
  5. Step 5: Solve for x
    x = 112,751,122.14/12,119.21
  6. Step 6: Final answer
    x = 9,303.50

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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.