Home / 11,999.48-17,999.22-4,210.52

Finding the Fourth Proportional to 11,999.48, 17,999.22 and 4,210.52

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Solution

The fourth proportional to 11,999.48, 17,999.22 and 4,210.52 is: 6,315.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.48 : 17,999.22 = 4,210.52 : x
  2. Step 2: Convert to fraction form
    11,999.48/17,999.22 = 4,210.52/x
  3. Step 3: Cross multiply
    11,999.48x = 17,999.22 × 4,210.52
  4. Step 4: Simplify right side
    11,999.48x = 75,786,075.79
  5. Step 5: Solve for x
    x = 75,786,075.79/11,999.48
  6. Step 6: Final answer
    x = 6,315.78

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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.