Home / 11,975.42-17,947.64-8,271.74

Finding the Fourth Proportional to 11,975.42, 17,947.64 and 8,271.74

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Solution

The fourth proportional to 11,975.42, 17,947.64 and 8,271.74 is: 12,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.42 : 17,947.64 = 8,271.74 : x
  2. Step 2: Convert to fraction form
    11,975.42/17,947.64 = 8,271.74/x
  3. Step 3: Cross multiply
    11,975.42x = 17,947.64 × 8,271.74
  4. Step 4: Simplify right side
    11,975.42x = 148,458,211.69
  5. Step 5: Solve for x
    x = 148,458,211.69/11,975.42
  6. Step 6: Final answer
    x = 12,396.91

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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.