Home / 13,674.92-20,515.58-5,879.40

Finding the Fourth Proportional to 13,674.92, 20,515.58 and 5,879.40

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Solution

The fourth proportional to 13,674.92, 20,515.58 and 5,879.40 is: 8,820.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.92 : 20,515.58 = 5,879.40 : x
  2. Step 2: Convert to fraction form
    13,674.92/20,515.58 = 5,879.40/x
  3. Step 3: Cross multiply
    13,674.92x = 20,515.58 × 5,879.40
  4. Step 4: Simplify right side
    13,674.92x = 120,619,301.05
  5. Step 5: Solve for x
    x = 120,619,301.05/13,674.92
  6. Step 6: Final answer
    x = 8,820.48

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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.