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Finding the Fourth Proportional to 11,992.69, 16,550.16 and 6,888.71

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Solution

The fourth proportional to 11,992.69, 16,550.16 and 6,888.71 is: 9,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.69 : 16,550.16 = 6,888.71 : x
  2. Step 2: Convert to fraction form
    11,992.69/16,550.16 = 6,888.71/x
  3. Step 3: Cross multiply
    11,992.69x = 16,550.16 × 6,888.71
  4. Step 4: Simplify right side
    11,992.69x = 114,009,268.24
  5. Step 5: Solve for x
    x = 114,009,268.24/11,992.69
  6. Step 6: Final answer
    x = 9,506.56

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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.