Home / 11,866.83-16,376.55-6,561.99

Finding the Fourth Proportional to 11,866.83, 16,376.55 and 6,561.99

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Solution

The fourth proportional to 11,866.83, 16,376.55 and 6,561.99 is: 9,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.83 : 16,376.55 = 6,561.99 : x
  2. Step 2: Convert to fraction form
    11,866.83/16,376.55 = 6,561.99/x
  3. Step 3: Cross multiply
    11,866.83x = 16,376.55 × 6,561.99
  4. Step 4: Simplify right side
    11,866.83x = 107,462,757.33
  5. Step 5: Solve for x
    x = 107,462,757.33/11,866.83
  6. Step 6: Final answer
    x = 9,055.73

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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.