Home / 25,403.44-38,107.86-7,874.64

Finding the Fourth Proportional to 25,403.44, 38,107.86 and 7,874.64

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Solution

The fourth proportional to 25,403.44, 38,107.86 and 7,874.64 is: 11,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.44 : 38,107.86 = 7,874.64 : x
  2. Step 2: Convert to fraction form
    25,403.44/38,107.86 = 7,874.64/x
  3. Step 3: Cross multiply
    25,403.44x = 38,107.86 × 7,874.64
  4. Step 4: Simplify right side
    25,403.44x = 300,085,678.67
  5. Step 5: Solve for x
    x = 300,085,678.67/25,403.44
  6. Step 6: Final answer
    x = 11,812.80

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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.