Home / 11,790.21-16,270.62-6,485.06

Finding the Fourth Proportional to 11,790.21, 16,270.62 and 6,485.06

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Solution

The fourth proportional to 11,790.21, 16,270.62 and 6,485.06 is: 8,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.21 : 16,270.62 = 6,485.06 : x
  2. Step 2: Convert to fraction form
    11,790.21/16,270.62 = 6,485.06/x
  3. Step 3: Cross multiply
    11,790.21x = 16,270.62 × 6,485.06
  4. Step 4: Simplify right side
    11,790.21x = 105,515,999.77
  5. Step 5: Solve for x
    x = 105,515,999.77/11,790.21
  6. Step 6: Final answer
    x = 8,949.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.