Home / 18,814.20-28,213.02-9,450.60

Finding the Fourth Proportional to 18,814.20, 28,213.02 and 9,450.60

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Solution

The fourth proportional to 18,814.20, 28,213.02 and 9,450.60 is: 14,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.20 : 28,213.02 = 9,450.60 : x
  2. Step 2: Convert to fraction form
    18,814.20/28,213.02 = 9,450.60/x
  3. Step 3: Cross multiply
    18,814.20x = 28,213.02 × 9,450.60
  4. Step 4: Simplify right side
    18,814.20x = 266,629,966.81
  5. Step 5: Solve for x
    x = 266,629,966.81/18,814.20
  6. Step 6: Final answer
    x = 14,171.74

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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.