Home / 12,126.55-16,734.09-6,749.26

Finding the Fourth Proportional to 12,126.55, 16,734.09 and 6,749.26

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Solution

The fourth proportional to 12,126.55, 16,734.09 and 6,749.26 is: 9,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.55 : 16,734.09 = 6,749.26 : x
  2. Step 2: Convert to fraction form
    12,126.55/16,734.09 = 6,749.26/x
  3. Step 3: Cross multiply
    12,126.55x = 16,734.09 × 6,749.26
  4. Step 4: Simplify right side
    12,126.55x = 112,942,724.27
  5. Step 5: Solve for x
    x = 112,942,724.27/12,126.55
  6. Step 6: Final answer
    x = 9,313.67

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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.