Home / 7,783.17-10,745.21-5,138.27

Finding the Fourth Proportional to 7,783.17, 10,745.21 and 5,138.27

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Solution

The fourth proportional to 7,783.17, 10,745.21 and 5,138.27 is: 7,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.17 : 10,745.21 = 5,138.27 : x
  2. Step 2: Convert to fraction form
    7,783.17/10,745.21 = 5,138.27/x
  3. Step 3: Cross multiply
    7,783.17x = 10,745.21 × 5,138.27
  4. Step 4: Simplify right side
    7,783.17x = 55,211,790.19
  5. Step 5: Solve for x
    x = 55,211,790.19/7,783.17
  6. Step 6: Final answer
    x = 7,093.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.