Home / 11,861.40-16,369.58-6,556.11

Finding the Fourth Proportional to 11,861.40, 16,369.58 and 6,556.11

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Solution

The fourth proportional to 11,861.40, 16,369.58 and 6,556.11 is: 9,047.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.40 : 16,369.58 = 6,556.11 : x
  2. Step 2: Convert to fraction form
    11,861.40/16,369.58 = 6,556.11/x
  3. Step 3: Cross multiply
    11,861.40x = 16,369.58 × 6,556.11
  4. Step 4: Simplify right side
    11,861.40x = 107,320,722.14
  5. Step 5: Solve for x
    x = 107,320,722.14/11,861.40
  6. Step 6: Final answer
    x = 9,047.89

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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.