Home / 11,822.88-16,317.20-6,788.64

Finding the Fourth Proportional to 11,822.88, 16,317.20 and 6,788.64

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Solution

The fourth proportional to 11,822.88, 16,317.20 and 6,788.64 is: 9,369.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.88 : 16,317.20 = 6,788.64 : x
  2. Step 2: Convert to fraction form
    11,822.88/16,317.20 = 6,788.64/x
  3. Step 3: Cross multiply
    11,822.88x = 16,317.20 × 6,788.64
  4. Step 4: Simplify right side
    11,822.88x = 110,771,596.61
  5. Step 5: Solve for x
    x = 110,771,596.61/11,822.88
  6. Step 6: Final answer
    x = 9,369.26

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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.