Home / 14,147.37-21,191.90-8,286.21

Finding the Fourth Proportional to 14,147.37, 21,191.90 and 8,286.21

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Solution

The fourth proportional to 14,147.37, 21,191.90 and 8,286.21 is: 12,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.37 : 21,191.90 = 8,286.21 : x
  2. Step 2: Convert to fraction form
    14,147.37/21,191.90 = 8,286.21/x
  3. Step 3: Cross multiply
    14,147.37x = 21,191.90 × 8,286.21
  4. Step 4: Simplify right side
    14,147.37x = 175,600,492.27
  5. Step 5: Solve for x
    x = 175,600,492.27/14,147.37
  6. Step 6: Final answer
    x = 12,412.24

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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.