Home / 11,137.88-16,714.90-8,972.76

Finding the Fourth Proportional to 11,137.88, 16,714.90 and 8,972.76

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Solution

The fourth proportional to 11,137.88, 16,714.90 and 8,972.76 is: 13,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.88 : 16,714.90 = 8,972.76 : x
  2. Step 2: Convert to fraction form
    11,137.88/16,714.90 = 8,972.76/x
  3. Step 3: Cross multiply
    11,137.88x = 16,714.90 × 8,972.76
  4. Step 4: Simplify right side
    11,137.88x = 149,978,786.12
  5. Step 5: Solve for x
    x = 149,978,786.12/11,137.88
  6. Step 6: Final answer
    x = 13,465.65

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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.