Home / 18,929.23-28,383.24-8,786.79

Finding the Fourth Proportional to 18,929.23, 28,383.24 and 8,786.79

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Solution

The fourth proportional to 18,929.23, 28,383.24 and 8,786.79 is: 13,175.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.23 : 28,383.24 = 8,786.79 : x
  2. Step 2: Convert to fraction form
    18,929.23/28,383.24 = 8,786.79/x
  3. Step 3: Cross multiply
    18,929.23x = 28,383.24 × 8,786.79
  4. Step 4: Simplify right side
    18,929.23x = 249,397,427.48
  5. Step 5: Solve for x
    x = 249,397,427.48/18,929.23
  6. Step 6: Final answer
    x = 13,175.26

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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.