Home / 12,119.58-16,725.36-6,814.86

Finding the Fourth Proportional to 12,119.58, 16,725.36 and 6,814.86

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Solution

The fourth proportional to 12,119.58, 16,725.36 and 6,814.86 is: 9,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.58 : 16,725.36 = 6,814.86 : x
  2. Step 2: Convert to fraction form
    12,119.58/16,725.36 = 6,814.86/x
  3. Step 3: Cross multiply
    12,119.58x = 16,725.36 × 6,814.86
  4. Step 4: Simplify right side
    12,119.58x = 113,980,986.85
  5. Step 5: Solve for x
    x = 113,980,986.85/12,119.58
  6. Step 6: Final answer
    x = 9,404.70

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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.