Home / 12,743.28-19,080.36-11,069.28

Finding the Fourth Proportional to 12,743.28, 19,080.36 and 11,069.28

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Solution

The fourth proportional to 12,743.28, 19,080.36 and 11,069.28 is: 16,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.28 : 19,080.36 = 11,069.28 : x
  2. Step 2: Convert to fraction form
    12,743.28/19,080.36 = 11,069.28/x
  3. Step 3: Cross multiply
    12,743.28x = 19,080.36 × 11,069.28
  4. Step 4: Simplify right side
    12,743.28x = 211,205,847.34
  5. Step 5: Solve for x
    x = 211,205,847.34/12,743.28
  6. Step 6: Final answer
    x = 16,573.90

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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.