Home / 12,880.97-19,264.67-11,213.27

Finding the Fourth Proportional to 12,880.97, 19,264.67 and 11,213.27

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Solution

The fourth proportional to 12,880.97, 19,264.67 and 11,213.27 is: 16,770.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.97 : 19,264.67 = 11,213.27 : x
  2. Step 2: Convert to fraction form
    12,880.97/19,264.67 = 11,213.27/x
  3. Step 3: Cross multiply
    12,880.97x = 19,264.67 × 11,213.27
  4. Step 4: Simplify right side
    12,880.97x = 216,019,890.10
  5. Step 5: Solve for x
    x = 216,019,890.10/12,880.97
  6. Step 6: Final answer
    x = 16,770.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.