Home / 8,271.62-12,399.94-3,005.40

Finding the Fourth Proportional to 8,271.62, 12,399.94 and 3,005.40

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Solution

The fourth proportional to 8,271.62, 12,399.94 and 3,005.40 is: 4,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.62 : 12,399.94 = 3,005.40 : x
  2. Step 2: Convert to fraction form
    8,271.62/12,399.94 = 3,005.40/x
  3. Step 3: Cross multiply
    8,271.62x = 12,399.94 × 3,005.40
  4. Step 4: Simplify right side
    8,271.62x = 37,266,779.68
  5. Step 5: Solve for x
    x = 37,266,779.68/8,271.62
  6. Step 6: Final answer
    x = 4,505.38

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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.