Home / 12,984.58-17,880.97-11,282.30

Finding the Fourth Proportional to 12,984.58, 17,880.97 and 11,282.30

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Solution

The fourth proportional to 12,984.58, 17,880.97 and 11,282.30 is: 15,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.58 : 17,880.97 = 11,282.30 : x
  2. Step 2: Convert to fraction form
    12,984.58/17,880.97 = 11,282.30/x
  3. Step 3: Cross multiply
    12,984.58x = 17,880.97 × 11,282.30
  4. Step 4: Simplify right side
    12,984.58x = 201,738,467.83
  5. Step 5: Solve for x
    x = 201,738,467.83/12,984.58
  6. Step 6: Final answer
    x = 15,536.77

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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.