Home / 12,515.05-18,767.04-3,748.33

Finding the Fourth Proportional to 12,515.05, 18,767.04 and 3,748.33

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Solution

The fourth proportional to 12,515.05, 18,767.04 and 3,748.33 is: 5,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.05 : 18,767.04 = 3,748.33 : x
  2. Step 2: Convert to fraction form
    12,515.05/18,767.04 = 3,748.33/x
  3. Step 3: Cross multiply
    12,515.05x = 18,767.04 × 3,748.33
  4. Step 4: Simplify right side
    12,515.05x = 70,345,059.04
  5. Step 5: Solve for x
    x = 70,345,059.04/12,515.05
  6. Step 6: Final answer
    x = 5,620.84

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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.