Home / 11,426.86-17,128.60-6,486.06

Finding the Fourth Proportional to 11,426.86, 17,128.60 and 6,486.06

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Solution

The fourth proportional to 11,426.86, 17,128.60 and 6,486.06 is: 9,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.86 : 17,128.60 = 6,486.06 : x
  2. Step 2: Convert to fraction form
    11,426.86/17,128.60 = 6,486.06/x
  3. Step 3: Cross multiply
    11,426.86x = 17,128.60 × 6,486.06
  4. Step 4: Simplify right side
    11,426.86x = 111,097,175.33
  5. Step 5: Solve for x
    x = 111,097,175.33/11,426.86
  6. Step 6: Final answer
    x = 9,722.46

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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.