Home / 18,890.90-28,297.44-11,080.88

Finding the Fourth Proportional to 18,890.90, 28,297.44 and 11,080.88

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Solution

The fourth proportional to 18,890.90, 28,297.44 and 11,080.88 is: 16,598.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.90 : 28,297.44 = 11,080.88 : x
  2. Step 2: Convert to fraction form
    18,890.90/28,297.44 = 11,080.88/x
  3. Step 3: Cross multiply
    18,890.90x = 28,297.44 × 11,080.88
  4. Step 4: Simplify right side
    18,890.90x = 313,560,395.46
  5. Step 5: Solve for x
    x = 313,560,395.46/18,890.90
  6. Step 6: Final answer
    x = 16,598.49

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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.