Home / 8,758.82-13,142.28-4,379.15

Finding the Fourth Proportional to 8,758.82, 13,142.28 and 4,379.15

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Solution

The fourth proportional to 8,758.82, 13,142.28 and 4,379.15 is: 6,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.82 : 13,142.28 = 4,379.15 : x
  2. Step 2: Convert to fraction form
    8,758.82/13,142.28 = 4,379.15/x
  3. Step 3: Cross multiply
    8,758.82x = 13,142.28 × 4,379.15
  4. Step 4: Simplify right side
    8,758.82x = 57,551,949.75
  5. Step 5: Solve for x
    x = 57,551,949.75/8,758.82
  6. Step 6: Final answer
    x = 6,570.75

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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.