Home / 12,247.72-16,902.21-6,942.37

Finding the Fourth Proportional to 12,247.72, 16,902.21 and 6,942.37

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Solution

The fourth proportional to 12,247.72, 16,902.21 and 6,942.37 is: 9,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247.72 : 16,902.21 = 6,942.37 : x
  2. Step 2: Convert to fraction form
    12,247.72/16,902.21 = 6,942.37/x
  3. Step 3: Cross multiply
    12,247.72x = 16,902.21 × 6,942.37
  4. Step 4: Simplify right side
    12,247.72x = 117,341,395.64
  5. Step 5: Solve for x
    x = 117,341,395.64/12,247.72
  6. Step 6: Final answer
    x = 9,580.67

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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.