Home / 12,288.20-16,955.70-11,665.64

Finding the Fourth Proportional to 12,288.20, 16,955.70 and 11,665.64

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Solution

The fourth proportional to 12,288.20, 16,955.70 and 11,665.64 is: 16,096.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.20 : 16,955.70 = 11,665.64 : x
  2. Step 2: Convert to fraction form
    12,288.20/16,955.70 = 11,665.64/x
  3. Step 3: Cross multiply
    12,288.20x = 16,955.70 × 11,665.64
  4. Step 4: Simplify right side
    12,288.20x = 197,799,092.15
  5. Step 5: Solve for x
    x = 197,799,092.15/12,288.20
  6. Step 6: Final answer
    x = 16,096.67

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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.