Home / 12,406.39-18,611.63-5,749.54

Finding the Fourth Proportional to 12,406.39, 18,611.63 and 5,749.54

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Solution

The fourth proportional to 12,406.39, 18,611.63 and 5,749.54 is: 8,625.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.39 : 18,611.63 = 5,749.54 : x
  2. Step 2: Convert to fraction form
    12,406.39/18,611.63 = 5,749.54/x
  3. Step 3: Cross multiply
    12,406.39x = 18,611.63 × 5,749.54
  4. Step 4: Simplify right side
    12,406.39x = 107,008,311.15
  5. Step 5: Solve for x
    x = 107,008,311.15/12,406.39
  6. Step 6: Final answer
    x = 8,625.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.