Home / 15,049.45-20,768.18-8,675.99

Finding the Fourth Proportional to 15,049.45, 20,768.18 and 8,675.99

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Solution

The fourth proportional to 15,049.45, 20,768.18 and 8,675.99 is: 11,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.45 : 20,768.18 = 8,675.99 : x
  2. Step 2: Convert to fraction form
    15,049.45/20,768.18 = 8,675.99/x
  3. Step 3: Cross multiply
    15,049.45x = 20,768.18 × 8,675.99
  4. Step 4: Simplify right side
    15,049.45x = 180,184,618.28
  5. Step 5: Solve for x
    x = 180,184,618.28/15,049.45
  6. Step 6: Final answer
    x = 11,972.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.