Home / 11,696.40-16,141.32-6,980.04

Finding the Fourth Proportional to 11,696.40, 16,141.32 and 6,980.04

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Solution

The fourth proportional to 11,696.40, 16,141.32 and 6,980.04 is: 9,632.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,696.40 : 16,141.32 = 6,980.04 : x
  2. Step 2: Convert to fraction form
    11,696.40/16,141.32 = 6,980.04/x
  3. Step 3: Cross multiply
    11,696.40x = 16,141.32 × 6,980.04
  4. Step 4: Simplify right side
    11,696.40x = 112,667,059.25
  5. Step 5: Solve for x
    x = 112,667,059.25/11,696.40
  6. Step 6: Final answer
    x = 9,632.63

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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.