Home / 13,847.21-19,134.14-9,861.41

Finding the Fourth Proportional to 13,847.21, 19,134.14 and 9,861.41

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Solution

The fourth proportional to 13,847.21, 19,134.14 and 9,861.41 is: 13,626.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.21 : 19,134.14 = 9,861.41 : x
  2. Step 2: Convert to fraction form
    13,847.21/19,134.14 = 9,861.41/x
  3. Step 3: Cross multiply
    13,847.21x = 19,134.14 × 9,861.41
  4. Step 4: Simplify right side
    13,847.21x = 188,689,454.56
  5. Step 5: Solve for x
    x = 188,689,454.56/13,847.21
  6. Step 6: Final answer
    x = 13,626.53

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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.