Home / 11,926.58-16,459.08-6,620.90

Finding the Fourth Proportional to 11,926.58, 16,459.08 and 6,620.90

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Solution

The fourth proportional to 11,926.58, 16,459.08 and 6,620.90 is: 9,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.58 : 16,459.08 = 6,620.90 : x
  2. Step 2: Convert to fraction form
    11,926.58/16,459.08 = 6,620.90/x
  3. Step 3: Cross multiply
    11,926.58x = 16,459.08 × 6,620.90
  4. Step 4: Simplify right side
    11,926.58x = 108,973,922.77
  5. Step 5: Solve for x
    x = 108,973,922.77/11,926.58
  6. Step 6: Final answer
    x = 9,137.06

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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.