Home / 12,450.28-17,180.58-6,861.28

Finding the Fourth Proportional to 12,450.28, 17,180.58 and 6,861.28

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Solution

The fourth proportional to 12,450.28, 17,180.58 and 6,861.28 is: 9,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.28 : 17,180.58 = 6,861.28 : x
  2. Step 2: Convert to fraction form
    12,450.28/17,180.58 = 6,861.28/x
  3. Step 3: Cross multiply
    12,450.28x = 17,180.58 × 6,861.28
  4. Step 4: Simplify right side
    12,450.28x = 117,880,769.94
  5. Step 5: Solve for x
    x = 117,880,769.94/12,450.28
  6. Step 6: Final answer
    x = 9,468.12

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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.