Home / 25,750.78-38,629.41-9,106.90

Finding the Fourth Proportional to 25,750.78, 38,629.41 and 9,106.90

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Solution

The fourth proportional to 25,750.78, 38,629.41 and 9,106.90 is: 13,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,750.78 : 38,629.41 = 9,106.90 : x
  2. Step 2: Convert to fraction form
    25,750.78/38,629.41 = 9,106.90/x
  3. Step 3: Cross multiply
    25,750.78x = 38,629.41 × 9,106.90
  4. Step 4: Simplify right side
    25,750.78x = 351,794,173.93
  5. Step 5: Solve for x
    x = 351,794,173.93/25,750.78
  6. Step 6: Final answer
    x = 13,661.50

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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.