Home / 11,946.78-16,486.92-6,641.64

Finding the Fourth Proportional to 11,946.78, 16,486.92 and 6,641.64

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Solution

The fourth proportional to 11,946.78, 16,486.92 and 6,641.64 is: 9,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.78 : 16,486.92 = 6,641.64 : x
  2. Step 2: Convert to fraction form
    11,946.78/16,486.92 = 6,641.64/x
  3. Step 3: Cross multiply
    11,946.78x = 16,486.92 × 6,641.64
  4. Step 4: Simplify right side
    11,946.78x = 109,500,187.35
  5. Step 5: Solve for x
    x = 109,500,187.35/11,946.78
  6. Step 6: Final answer
    x = 9,165.67

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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.