Home / 12,108.32-16,714.60-11,351.68

Finding the Fourth Proportional to 12,108.32, 16,714.60 and 11,351.68

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Solution

The fourth proportional to 12,108.32, 16,714.60 and 11,351.68 is: 15,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.32 : 16,714.60 = 11,351.68 : x
  2. Step 2: Convert to fraction form
    12,108.32/16,714.60 = 11,351.68/x
  3. Step 3: Cross multiply
    12,108.32x = 16,714.60 × 11,351.68
  4. Step 4: Simplify right side
    12,108.32x = 189,738,790.53
  5. Step 5: Solve for x
    x = 189,738,790.53/12,108.32
  6. Step 6: Final answer
    x = 15,670.12

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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.