Home / 7,387.30-11,078.57-2,455.62

Finding the Fourth Proportional to 7,387.30, 11,078.57 and 2,455.62

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Solution

The fourth proportional to 7,387.30, 11,078.57 and 2,455.62 is: 3,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.30 : 11,078.57 = 2,455.62 : x
  2. Step 2: Convert to fraction form
    7,387.30/11,078.57 = 2,455.62/x
  3. Step 3: Cross multiply
    7,387.30x = 11,078.57 × 2,455.62
  4. Step 4: Simplify right side
    7,387.30x = 27,204,722.66
  5. Step 5: Solve for x
    x = 27,204,722.66/7,387.30
  6. Step 6: Final answer
    x = 3,682.63

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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.