Home / 13,586.46-18,749.22-8,280.96

Finding the Fourth Proportional to 13,586.46, 18,749.22 and 8,280.96

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Solution

The fourth proportional to 13,586.46, 18,749.22 and 8,280.96 is: 11,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.46 : 18,749.22 = 8,280.96 : x
  2. Step 2: Convert to fraction form
    13,586.46/18,749.22 = 8,280.96/x
  3. Step 3: Cross multiply
    13,586.46x = 18,749.22 × 8,280.96
  4. Step 4: Simplify right side
    13,586.46x = 155,261,540.85
  5. Step 5: Solve for x
    x = 155,261,540.85/13,586.46
  6. Step 6: Final answer
    x = 11,427.67

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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.