Home / 11,905.36-17,842.36-6,642.84

Finding the Fourth Proportional to 11,905.36, 17,842.36 and 6,642.84

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Solution

The fourth proportional to 11,905.36, 17,842.36 and 6,642.84 is: 9,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.36 : 17,842.36 = 6,642.84 : x
  2. Step 2: Convert to fraction form
    11,905.36/17,842.36 = 6,642.84/x
  3. Step 3: Cross multiply
    11,905.36x = 17,842.36 × 6,642.84
  4. Step 4: Simplify right side
    11,905.36x = 118,524,003.92
  5. Step 5: Solve for x
    x = 118,524,003.92/11,905.36
  6. Step 6: Final answer
    x = 9,955.52

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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.