Home / 12,120.02-18,182.10-3,798.44

Finding the Fourth Proportional to 12,120.02, 18,182.10 and 3,798.44

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Solution

The fourth proportional to 12,120.02, 18,182.10 and 3,798.44 is: 5,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120.02 : 18,182.10 = 3,798.44 : x
  2. Step 2: Convert to fraction form
    12,120.02/18,182.10 = 3,798.44/x
  3. Step 3: Cross multiply
    12,120.02x = 18,182.10 × 3,798.44
  4. Step 4: Simplify right side
    12,120.02x = 69,063,615.92
  5. Step 5: Solve for x
    x = 69,063,615.92/12,120.02
  6. Step 6: Final answer
    x = 5,698.31

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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.