Home / 13,816.27-20,724.22-8,271.15

Finding the Fourth Proportional to 13,816.27, 20,724.22 and 8,271.15

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Solution

The fourth proportional to 13,816.27, 20,724.22 and 8,271.15 is: 12,406.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.27 : 20,724.22 = 8,271.15 : x
  2. Step 2: Convert to fraction form
    13,816.27/20,724.22 = 8,271.15/x
  3. Step 3: Cross multiply
    13,816.27x = 20,724.22 × 8,271.15
  4. Step 4: Simplify right side
    13,816.27x = 171,413,064.88
  5. Step 5: Solve for x
    x = 171,413,064.88/13,816.27
  6. Step 6: Final answer
    x = 12,406.61

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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.