Home / 12,406.19-18,611.36-5,749.36

Finding the Fourth Proportional to 12,406.19, 18,611.36 and 5,749.36

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Solution

The fourth proportional to 12,406.19, 18,611.36 and 5,749.36 is: 8,624.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.19 : 18,611.36 = 5,749.36 : x
  2. Step 2: Convert to fraction form
    12,406.19/18,611.36 = 5,749.36/x
  3. Step 3: Cross multiply
    12,406.19x = 18,611.36 × 5,749.36
  4. Step 4: Simplify right side
    12,406.19x = 107,003,286.93
  5. Step 5: Solve for x
    x = 107,003,286.93/12,406.19
  6. Step 6: Final answer
    x = 8,624.99

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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.