Home / 11,896.70-16,417.54-7,180.06

Finding the Fourth Proportional to 11,896.70, 16,417.54 and 7,180.06

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Solution

The fourth proportional to 11,896.70, 16,417.54 and 7,180.06 is: 9,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,896.70 : 16,417.54 = 7,180.06 : x
  2. Step 2: Convert to fraction form
    11,896.70/16,417.54 = 7,180.06/x
  3. Step 3: Cross multiply
    11,896.70x = 16,417.54 × 7,180.06
  4. Step 4: Simplify right side
    11,896.70x = 117,878,922.25
  5. Step 5: Solve for x
    x = 117,878,922.25/11,896.70
  6. Step 6: Final answer
    x = 9,908.54

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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.