Home / 11,828.05-16,321.96-6,788.72

Finding the Fourth Proportional to 11,828.05, 16,321.96 and 6,788.72

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Solution

The fourth proportional to 11,828.05, 16,321.96 and 6,788.72 is: 9,368.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.05 : 16,321.96 = 6,788.72 : x
  2. Step 2: Convert to fraction form
    11,828.05/16,321.96 = 6,788.72/x
  3. Step 3: Cross multiply
    11,828.05x = 16,321.96 × 6,788.72
  4. Step 4: Simplify right side
    11,828.05x = 110,805,240.12
  5. Step 5: Solve for x
    x = 110,805,240.12/11,828.05
  6. Step 6: Final answer
    x = 9,368.01

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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.