Home / 11,790.32-16,270.67-6,485.47

Finding the Fourth Proportional to 11,790.32, 16,270.67 and 6,485.47

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Solution

The fourth proportional to 11,790.32, 16,270.67 and 6,485.47 is: 8,949.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.32 : 16,270.67 = 6,485.47 : x
  2. Step 2: Convert to fraction form
    11,790.32/16,270.67 = 6,485.47/x
  3. Step 3: Cross multiply
    11,790.32x = 16,270.67 × 6,485.47
  4. Step 4: Simplify right side
    11,790.32x = 105,522,917.70
  5. Step 5: Solve for x
    x = 105,522,917.70/11,790.32
  6. Step 6: Final answer
    x = 8,949.97

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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.