Home / 11,720.07-16,173.63-6,414.89

Finding the Fourth Proportional to 11,720.07, 16,173.63 and 6,414.89

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Solution

The fourth proportional to 11,720.07, 16,173.63 and 6,414.89 is: 8,852.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.07 : 16,173.63 = 6,414.89 : x
  2. Step 2: Convert to fraction form
    11,720.07/16,173.63 = 6,414.89/x
  3. Step 3: Cross multiply
    11,720.07x = 16,173.63 × 6,414.89
  4. Step 4: Simplify right side
    11,720.07x = 103,751,976.48
  5. Step 5: Solve for x
    x = 103,751,976.48/11,720.07
  6. Step 6: Final answer
    x = 8,852.50

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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.