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Finding the Fourth Proportional to 9,012.05, 13,520.51 and 8,144.54

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Solution

The fourth proportional to 9,012.05, 13,520.51 and 8,144.54 is: 12,219.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.05 : 13,520.51 = 8,144.54 : x
  2. Step 2: Convert to fraction form
    9,012.05/13,520.51 = 8,144.54/x
  3. Step 3: Cross multiply
    9,012.05x = 13,520.51 × 8,144.54
  4. Step 4: Simplify right side
    9,012.05x = 110,118,226.19
  5. Step 5: Solve for x
    x = 110,118,226.19/9,012.05
  6. Step 6: Final answer
    x = 12,219.01

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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.