Home / 11,999.51-18,001.38-4,100.18

Finding the Fourth Proportional to 11,999.51, 18,001.38 and 4,100.18

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Solution

The fourth proportional to 11,999.51, 18,001.38 and 4,100.18 is: 6,150.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.51 : 18,001.38 = 4,100.18 : x
  2. Step 2: Convert to fraction form
    11,999.51/18,001.38 = 4,100.18/x
  3. Step 3: Cross multiply
    11,999.51x = 18,001.38 × 4,100.18
  4. Step 4: Simplify right side
    11,999.51x = 73,808,823.62
  5. Step 5: Solve for x
    x = 73,808,823.62/11,999.51
  6. Step 6: Final answer
    x = 6,150.99

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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.