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Finding the Fourth Proportional to 9,020.30, 12,451.49 and 8,074.41

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Solution

The fourth proportional to 9,020.30, 12,451.49 and 8,074.41 is: 11,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,020.30 : 12,451.49 = 8,074.41 : x
  2. Step 2: Convert to fraction form
    9,020.30/12,451.49 = 8,074.41/x
  3. Step 3: Cross multiply
    9,020.30x = 12,451.49 × 8,074.41
  4. Step 4: Simplify right side
    9,020.30x = 100,538,395.00
  5. Step 5: Solve for x
    x = 100,538,395.00/9,020.30
  6. Step 6: Final answer
    x = 11,145.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.