Home / 25,286.78-37,928.74-7,756.57

Finding the Fourth Proportional to 25,286.78, 37,928.74 and 7,756.57

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Solution

The fourth proportional to 25,286.78, 37,928.74 and 7,756.57 is: 11,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.78 : 37,928.74 = 7,756.57 : x
  2. Step 2: Convert to fraction form
    25,286.78/37,928.74 = 7,756.57/x
  3. Step 3: Cross multiply
    25,286.78x = 37,928.74 × 7,756.57
  4. Step 4: Simplify right side
    25,286.78x = 294,196,926.82
  5. Step 5: Solve for x
    x = 294,196,926.82/25,286.78
  6. Step 6: Final answer
    x = 11,634.42

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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.