Home / 18,674.49-28,011.78-12,813.33

Finding the Fourth Proportional to 18,674.49, 28,011.78 and 12,813.33

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Solution

The fourth proportional to 18,674.49, 28,011.78 and 12,813.33 is: 19,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.49 : 28,011.78 = 12,813.33 : x
  2. Step 2: Convert to fraction form
    18,674.49/28,011.78 = 12,813.33/x
  3. Step 3: Cross multiply
    18,674.49x = 28,011.78 × 12,813.33
  4. Step 4: Simplify right side
    18,674.49x = 358,924,181.03
  5. Step 5: Solve for x
    x = 358,924,181.03/18,674.49
  6. Step 6: Final answer
    x = 19,220.03

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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.