Home / 12,755.32-19,131.90-4,433.20

Finding the Fourth Proportional to 12,755.32, 19,131.90 and 4,433.20

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Solution

The fourth proportional to 12,755.32, 19,131.90 and 4,433.20 is: 6,649.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.32 : 19,131.90 = 4,433.20 : x
  2. Step 2: Convert to fraction form
    12,755.32/19,131.90 = 4,433.20/x
  3. Step 3: Cross multiply
    12,755.32x = 19,131.90 × 4,433.20
  4. Step 4: Simplify right side
    12,755.32x = 84,815,539.08
  5. Step 5: Solve for x
    x = 84,815,539.08/12,755.32
  6. Step 6: Final answer
    x = 6,649.42

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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.