Home / 8,087.92-12,114.34-3,919.19

Finding the Fourth Proportional to 8,087.92, 12,114.34 and 3,919.19

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Solution

The fourth proportional to 8,087.92, 12,114.34 and 3,919.19 is: 5,870.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.92 : 12,114.34 = 3,919.19 : x
  2. Step 2: Convert to fraction form
    8,087.92/12,114.34 = 3,919.19/x
  3. Step 3: Cross multiply
    8,087.92x = 12,114.34 × 3,919.19
  4. Step 4: Simplify right side
    8,087.92x = 47,478,329.81
  5. Step 5: Solve for x
    x = 47,478,329.81/8,087.92
  6. Step 6: Final answer
    x = 5,870.28

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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.