Home / 11,955.50-16,499.30-6,650.20

Finding the Fourth Proportional to 11,955.50, 16,499.30 and 6,650.20

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Solution

The fourth proportional to 11,955.50, 16,499.30 and 6,650.20 is: 9,177.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.50 : 16,499.30 = 6,650.20 : x
  2. Step 2: Convert to fraction form
    11,955.50/16,499.30 = 6,650.20/x
  3. Step 3: Cross multiply
    11,955.50x = 16,499.30 × 6,650.20
  4. Step 4: Simplify right side
    11,955.50x = 109,723,632.23
  5. Step 5: Solve for x
    x = 109,723,632.23/11,955.50
  6. Step 6: Final answer
    x = 9,177.67

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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.