Home / 12,080.04-18,120.09-3,315.03

Finding the Fourth Proportional to 12,080.04, 18,120.09 and 3,315.03

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Solution

The fourth proportional to 12,080.04, 18,120.09 and 3,315.03 is: 4,972.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.04 : 18,120.09 = 3,315.03 : x
  2. Step 2: Convert to fraction form
    12,080.04/18,120.09 = 3,315.03/x
  3. Step 3: Cross multiply
    12,080.04x = 18,120.09 × 3,315.03
  4. Step 4: Simplify right side
    12,080.04x = 60,068,641.95
  5. Step 5: Solve for x
    x = 60,068,641.95/12,080.04
  6. Step 6: Final answer
    x = 4,972.55

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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.