Home / 7,839.24-11,755.08-4,145.64

Finding the Fourth Proportional to 7,839.24, 11,755.08 and 4,145.64

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Solution

The fourth proportional to 7,839.24, 11,755.08 and 4,145.64 is: 6,216.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.24 : 11,755.08 = 4,145.64 : x
  2. Step 2: Convert to fraction form
    7,839.24/11,755.08 = 4,145.64/x
  3. Step 3: Cross multiply
    7,839.24x = 11,755.08 × 4,145.64
  4. Step 4: Simplify right side
    7,839.24x = 48,732,329.85
  5. Step 5: Solve for x
    x = 48,732,329.85/7,839.24
  6. Step 6: Final answer
    x = 6,216.46

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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.