Home / 14,034.04-21,039.88-8,104.20

Finding the Fourth Proportional to 14,034.04, 21,039.88 and 8,104.20

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Solution

The fourth proportional to 14,034.04, 21,039.88 and 8,104.20 is: 12,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,034.04 : 21,039.88 = 8,104.20 : x
  2. Step 2: Convert to fraction form
    14,034.04/21,039.88 = 8,104.20/x
  3. Step 3: Cross multiply
    14,034.04x = 21,039.88 × 8,104.20
  4. Step 4: Simplify right side
    14,034.04x = 170,511,290.30
  5. Step 5: Solve for x
    x = 170,511,290.30/14,034.04
  6. Step 6: Final answer
    x = 12,149.84

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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.