Home / 10,194.10-15,291.50-3,620.80

Finding the Fourth Proportional to 10,194.10, 15,291.50 and 3,620.80

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Solution

The fourth proportional to 10,194.10, 15,291.50 and 3,620.80 is: 5,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,194.10 : 15,291.50 = 3,620.80 : x
  2. Step 2: Convert to fraction form
    10,194.10/15,291.50 = 3,620.80/x
  3. Step 3: Cross multiply
    10,194.10x = 15,291.50 × 3,620.80
  4. Step 4: Simplify right side
    10,194.10x = 55,367,463.20
  5. Step 5: Solve for x
    x = 55,367,463.20/10,194.10
  6. Step 6: Final answer
    x = 5,431.32

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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.