Home / 12,125.82-16,714.57-11,108.86

Finding the Fourth Proportional to 12,125.82, 16,714.57 and 11,108.86

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Solution

The fourth proportional to 12,125.82, 16,714.57 and 11,108.86 is: 15,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.82 : 16,714.57 = 11,108.86 : x
  2. Step 2: Convert to fraction form
    12,125.82/16,714.57 = 11,108.86/x
  3. Step 3: Cross multiply
    12,125.82x = 16,714.57 × 11,108.86
  4. Step 4: Simplify right side
    12,125.82x = 185,679,818.09
  5. Step 5: Solve for x
    x = 185,679,818.09/12,125.82
  6. Step 6: Final answer
    x = 15,312.76

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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.