Home / 11,689.97-16,131.53-6,653.39

Finding the Fourth Proportional to 11,689.97, 16,131.53 and 6,653.39

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Solution

The fourth proportional to 11,689.97, 16,131.53 and 6,653.39 is: 9,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.97 : 16,131.53 = 6,653.39 : x
  2. Step 2: Convert to fraction form
    11,689.97/16,131.53 = 6,653.39/x
  3. Step 3: Cross multiply
    11,689.97x = 16,131.53 × 6,653.39
  4. Step 4: Simplify right side
    11,689.97x = 107,329,296.36
  5. Step 5: Solve for x
    x = 107,329,296.36/11,689.97
  6. Step 6: Final answer
    x = 9,181.32

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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.