Home / 8,074.21-12,108.94-3,142.67

Finding the Fourth Proportional to 8,074.21, 12,108.94 and 3,142.67

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Solution

The fourth proportional to 8,074.21, 12,108.94 and 3,142.67 is: 4,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.21 : 12,108.94 = 3,142.67 : x
  2. Step 2: Convert to fraction form
    8,074.21/12,108.94 = 3,142.67/x
  3. Step 3: Cross multiply
    8,074.21x = 12,108.94 × 3,142.67
  4. Step 4: Simplify right side
    8,074.21x = 38,054,402.47
  5. Step 5: Solve for x
    x = 38,054,402.47/8,074.21
  6. Step 6: Final answer
    x = 4,713.08

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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.