Home / 8,379.53-11,561.69-4,745.64

Finding the Fourth Proportional to 8,379.53, 11,561.69 and 4,745.64

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Solution

The fourth proportional to 8,379.53, 11,561.69 and 4,745.64 is: 6,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.53 : 11,561.69 = 4,745.64 : x
  2. Step 2: Convert to fraction form
    8,379.53/11,561.69 = 4,745.64/x
  3. Step 3: Cross multiply
    8,379.53x = 11,561.69 × 4,745.64
  4. Step 4: Simplify right side
    8,379.53x = 54,867,618.53
  5. Step 5: Solve for x
    x = 54,867,618.53/8,379.53
  6. Step 6: Final answer
    x = 6,547.82

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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.