Home / 14,442.90-21,649.77-7,855.44

Finding the Fourth Proportional to 14,442.90, 21,649.77 and 7,855.44

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Solution

The fourth proportional to 14,442.90, 21,649.77 and 7,855.44 is: 11,775.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,442.90 : 21,649.77 = 7,855.44 : x
  2. Step 2: Convert to fraction form
    14,442.90/21,649.77 = 7,855.44/x
  3. Step 3: Cross multiply
    14,442.90x = 21,649.77 × 7,855.44
  4. Step 4: Simplify right side
    14,442.90x = 170,068,469.25
  5. Step 5: Solve for x
    x = 170,068,469.25/14,442.90
  6. Step 6: Final answer
    x = 11,775.23

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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.