Home / 11,896.90-16,423.05-8,556.10

Finding the Fourth Proportional to 11,896.90, 16,423.05 and 8,556.10

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Solution

The fourth proportional to 11,896.90, 16,423.05 and 8,556.10 is: 11,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,896.90 : 16,423.05 = 8,556.10 : x
  2. Step 2: Convert to fraction form
    11,896.90/16,423.05 = 8,556.10/x
  3. Step 3: Cross multiply
    11,896.90x = 16,423.05 × 8,556.10
  4. Step 4: Simplify right side
    11,896.90x = 140,517,258.11
  5. Step 5: Solve for x
    x = 140,517,258.11/11,896.90
  6. Step 6: Final answer
    x = 11,811.25

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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.