Home / 12,455.94-18,674.58-4,131.02

Finding the Fourth Proportional to 12,455.94, 18,674.58 and 4,131.02

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Solution

The fourth proportional to 12,455.94, 18,674.58 and 4,131.02 is: 6,193.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.94 : 18,674.58 = 4,131.02 : x
  2. Step 2: Convert to fraction form
    12,455.94/18,674.58 = 4,131.02/x
  3. Step 3: Cross multiply
    12,455.94x = 18,674.58 × 4,131.02
  4. Step 4: Simplify right side
    12,455.94x = 77,145,063.47
  5. Step 5: Solve for x
    x = 77,145,063.47/12,455.94
  6. Step 6: Final answer
    x = 6,193.44

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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.