Home / 10,074.94-15,112.38-2,679.40

Finding the Fourth Proportional to 10,074.94, 15,112.38 and 2,679.40

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Solution

The fourth proportional to 10,074.94, 15,112.38 and 2,679.40 is: 4,019.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,074.94 : 15,112.38 = 2,679.40 : x
  2. Step 2: Convert to fraction form
    10,074.94/15,112.38 = 2,679.40/x
  3. Step 3: Cross multiply
    10,074.94x = 15,112.38 × 2,679.40
  4. Step 4: Simplify right side
    10,074.94x = 40,492,110.97
  5. Step 5: Solve for x
    x = 40,492,110.97/10,074.94
  6. Step 6: Final answer
    x = 4,019.09

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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.