Home / 13,516.80-20,271.60-4,156.80

Finding the Fourth Proportional to 13,516.80, 20,271.60 and 4,156.80

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Solution

The fourth proportional to 13,516.80, 20,271.60 and 4,156.80 is: 6,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.80 : 20,271.60 = 4,156.80 : x
  2. Step 2: Convert to fraction form
    13,516.80/20,271.60 = 4,156.80/x
  3. Step 3: Cross multiply
    13,516.80x = 20,271.60 × 4,156.80
  4. Step 4: Simplify right side
    13,516.80x = 84,264,986.88
  5. Step 5: Solve for x
    x = 84,264,986.88/13,516.80
  6. Step 6: Final answer
    x = 6,234.09

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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.