Home / 7,886.35-11,827.09-2,620.24

Finding the Fourth Proportional to 7,886.35, 11,827.09 and 2,620.24

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Solution

The fourth proportional to 7,886.35, 11,827.09 and 2,620.24 is: 3,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.35 : 11,827.09 = 2,620.24 : x
  2. Step 2: Convert to fraction form
    7,886.35/11,827.09 = 2,620.24/x
  3. Step 3: Cross multiply
    7,886.35x = 11,827.09 × 2,620.24
  4. Step 4: Simplify right side
    7,886.35x = 30,989,814.30
  5. Step 5: Solve for x
    x = 30,989,814.30/7,886.35
  6. Step 6: Final answer
    x = 3,929.55

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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.