Home / 7,899.35-11,839.77-4,387.66

Finding the Fourth Proportional to 7,899.35, 11,839.77 and 4,387.66

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Solution

The fourth proportional to 7,899.35, 11,839.77 and 4,387.66 is: 6,576.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.35 : 11,839.77 = 4,387.66 : x
  2. Step 2: Convert to fraction form
    7,899.35/11,839.77 = 4,387.66/x
  3. Step 3: Cross multiply
    7,899.35x = 11,839.77 × 4,387.66
  4. Step 4: Simplify right side
    7,899.35x = 51,948,855.64
  5. Step 5: Solve for x
    x = 51,948,855.64/7,899.35
  6. Step 6: Final answer
    x = 6,576.35

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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.