Home / 7,786.12-10,745.10-4,428.85

Finding the Fourth Proportional to 7,786.12, 10,745.10 and 4,428.85

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Solution

The fourth proportional to 7,786.12, 10,745.10 and 4,428.85 is: 6,111.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.12 : 10,745.10 = 4,428.85 : x
  2. Step 2: Convert to fraction form
    7,786.12/10,745.10 = 4,428.85/x
  3. Step 3: Cross multiply
    7,786.12x = 10,745.10 × 4,428.85
  4. Step 4: Simplify right side
    7,786.12x = 47,588,455.10
  5. Step 5: Solve for x
    x = 47,588,455.10/7,786.12
  6. Step 6: Final answer
    x = 6,111.96

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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.