Home / 11,235.20-16,852.80-4,214.12

Finding the Fourth Proportional to 11,235.20, 16,852.80 and 4,214.12

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Solution

The fourth proportional to 11,235.20, 16,852.80 and 4,214.12 is: 6,321.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.20 : 16,852.80 = 4,214.12 : x
  2. Step 2: Convert to fraction form
    11,235.20/16,852.80 = 4,214.12/x
  3. Step 3: Cross multiply
    11,235.20x = 16,852.80 × 4,214.12
  4. Step 4: Simplify right side
    11,235.20x = 71,019,721.54
  5. Step 5: Solve for x
    x = 71,019,721.54/11,235.20
  6. Step 6: Final answer
    x = 6,321.18

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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.