Home / 12,919.35-19,373.25-3,683.19

Finding the Fourth Proportional to 12,919.35, 19,373.25 and 3,683.19

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Solution

The fourth proportional to 12,919.35, 19,373.25 and 3,683.19 is: 5,523.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.35 : 19,373.25 = 3,683.19 : x
  2. Step 2: Convert to fraction form
    12,919.35/19,373.25 = 3,683.19/x
  3. Step 3: Cross multiply
    12,919.35x = 19,373.25 × 3,683.19
  4. Step 4: Simplify right side
    12,919.35x = 71,355,360.67
  5. Step 5: Solve for x
    x = 71,355,360.67/12,919.35
  6. Step 6: Final answer
    x = 5,523.14

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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.