Home / 11,955.45-16,491.77-7,174.12

Finding the Fourth Proportional to 11,955.45, 16,491.77 and 7,174.12

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Solution

The fourth proportional to 11,955.45, 16,491.77 and 7,174.12 is: 9,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.45 : 16,491.77 = 7,174.12 : x
  2. Step 2: Convert to fraction form
    11,955.45/16,491.77 = 7,174.12/x
  3. Step 3: Cross multiply
    11,955.45x = 16,491.77 × 7,174.12
  4. Step 4: Simplify right side
    11,955.45x = 118,313,854.53
  5. Step 5: Solve for x
    x = 118,313,854.53/11,955.45
  6. Step 6: Final answer
    x = 9,896.23

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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.