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Finding the Fourth Proportional to 8,989.87, 13,474.21 and 4,053.73

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Solution

The fourth proportional to 8,989.87, 13,474.21 and 4,053.73 is: 6,075.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.87 : 13,474.21 = 4,053.73 : x
  2. Step 2: Convert to fraction form
    8,989.87/13,474.21 = 4,053.73/x
  3. Step 3: Cross multiply
    8,989.87x = 13,474.21 × 4,053.73
  4. Step 4: Simplify right side
    8,989.87x = 54,620,809.30
  5. Step 5: Solve for x
    x = 54,620,809.30/8,989.87
  6. Step 6: Final answer
    x = 6,075.82

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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.