Home / 11,940.72-16,477.87-6,635.40

Finding the Fourth Proportional to 11,940.72, 16,477.87 and 6,635.40

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Solution

The fourth proportional to 11,940.72, 16,477.87 and 6,635.40 is: 9,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.72 : 16,477.87 = 6,635.40 : x
  2. Step 2: Convert to fraction form
    11,940.72/16,477.87 = 6,635.40/x
  3. Step 3: Cross multiply
    11,940.72x = 16,477.87 × 6,635.40
  4. Step 4: Simplify right side
    11,940.72x = 109,337,258.60
  5. Step 5: Solve for x
    x = 109,337,258.60/11,940.72
  6. Step 6: Final answer
    x = 9,156.67

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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.