Home / 8,860.44-12,220.12-6,467.72

Finding the Fourth Proportional to 8,860.44, 12,220.12 and 6,467.72

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Solution

The fourth proportional to 8,860.44, 12,220.12 and 6,467.72 is: 8,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.44 : 12,220.12 = 6,467.72 : x
  2. Step 2: Convert to fraction form
    8,860.44/12,220.12 = 6,467.72/x
  3. Step 3: Cross multiply
    8,860.44x = 12,220.12 × 6,467.72
  4. Step 4: Simplify right side
    8,860.44x = 79,036,221.09
  5. Step 5: Solve for x
    x = 79,036,221.09/8,860.44
  6. Step 6: Final answer
    x = 8,920.13

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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.