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Finding the Fourth Proportional to 8,453.88, 12,662.40 and 4,754.16

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Solution

The fourth proportional to 8,453.88, 12,662.40 and 4,754.16 is: 7,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.88 : 12,662.40 = 4,754.16 : x
  2. Step 2: Convert to fraction form
    8,453.88/12,662.40 = 4,754.16/x
  3. Step 3: Cross multiply
    8,453.88x = 12,662.40 × 4,754.16
  4. Step 4: Simplify right side
    8,453.88x = 60,199,075.58
  5. Step 5: Solve for x
    x = 60,199,075.58/8,453.88
  6. Step 6: Final answer
    x = 7,120.88

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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.