Home / 7,725.94-11,578.77-4,395.72

Finding the Fourth Proportional to 7,725.94, 11,578.77 and 4,395.72

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Solution

The fourth proportional to 7,725.94, 11,578.77 and 4,395.72 is: 6,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.94 : 11,578.77 = 4,395.72 : x
  2. Step 2: Convert to fraction form
    7,725.94/11,578.77 = 4,395.72/x
  3. Step 3: Cross multiply
    7,725.94x = 11,578.77 × 4,395.72
  4. Step 4: Simplify right side
    7,725.94x = 50,897,030.86
  5. Step 5: Solve for x
    x = 50,897,030.86/7,725.94
  6. Step 6: Final answer
    x = 6,587.81

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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.