Home / 8,145.31-11,240.41-4,788.49

Finding the Fourth Proportional to 8,145.31, 11,240.41 and 4,788.49

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Solution

The fourth proportional to 8,145.31, 11,240.41 and 4,788.49 is: 6,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.31 : 11,240.41 = 4,788.49 : x
  2. Step 2: Convert to fraction form
    8,145.31/11,240.41 = 4,788.49/x
  3. Step 3: Cross multiply
    8,145.31x = 11,240.41 × 4,788.49
  4. Step 4: Simplify right side
    8,145.31x = 53,824,590.88
  5. Step 5: Solve for x
    x = 53,824,590.88/8,145.31
  6. Step 6: Final answer
    x = 6,608.05

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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.