Home / 13,677.12-20,554.14-8,131.44

Finding the Fourth Proportional to 13,677.12, 20,554.14 and 8,131.44

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Solution

The fourth proportional to 13,677.12, 20,554.14 and 8,131.44 is: 12,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.12 : 20,554.14 = 8,131.44 : x
  2. Step 2: Convert to fraction form
    13,677.12/20,554.14 = 8,131.44/x
  3. Step 3: Cross multiply
    13,677.12x = 20,554.14 × 8,131.44
  4. Step 4: Simplify right side
    13,677.12x = 167,134,756.16
  5. Step 5: Solve for x
    x = 167,134,756.16/13,677.12
  6. Step 6: Final answer
    x = 12,220.03

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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.