Home / 12,239.91-18,361.08-4,847.85

Finding the Fourth Proportional to 12,239.91, 18,361.08 and 4,847.85

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Solution

The fourth proportional to 12,239.91, 18,361.08 and 4,847.85 is: 7,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.91 : 18,361.08 = 4,847.85 : x
  2. Step 2: Convert to fraction form
    12,239.91/18,361.08 = 4,847.85/x
  3. Step 3: Cross multiply
    12,239.91x = 18,361.08 × 4,847.85
  4. Step 4: Simplify right side
    12,239.91x = 89,011,761.68
  5. Step 5: Solve for x
    x = 89,011,761.68/12,239.91
  6. Step 6: Final answer
    x = 7,272.26

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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.