Home / 8,379.32-11,561.39-4,745.43

Finding the Fourth Proportional to 8,379.32, 11,561.39 and 4,745.43

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Solution

The fourth proportional to 8,379.32, 11,561.39 and 4,745.43 is: 6,547.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.32 : 11,561.39 = 4,745.43 : x
  2. Step 2: Convert to fraction form
    8,379.32/11,561.39 = 4,745.43/x
  3. Step 3: Cross multiply
    8,379.32x = 11,561.39 × 4,745.43
  4. Step 4: Simplify right side
    8,379.32x = 54,863,709.14
  5. Step 5: Solve for x
    x = 54,863,709.14/8,379.32
  6. Step 6: Final answer
    x = 6,547.52

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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.