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Finding the Fourth Proportional to 11,969.88, 17,828.37 and 11,345.37

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Solution

The fourth proportional to 11,969.88, 17,828.37 and 11,345.37 is: 16,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969.88 : 17,828.37 = 11,345.37 : x
  2. Step 2: Convert to fraction form
    11,969.88/17,828.37 = 11,345.37/x
  3. Step 3: Cross multiply
    11,969.88x = 17,828.37 × 11,345.37
  4. Step 4: Simplify right side
    11,969.88x = 202,269,454.15
  5. Step 5: Solve for x
    x = 202,269,454.15/11,969.88
  6. Step 6: Final answer
    x = 16,898.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.