Home / 12,548.07-18,818.46-3,780.63

Finding the Fourth Proportional to 12,548.07, 18,818.46 and 3,780.63

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Solution

The fourth proportional to 12,548.07, 18,818.46 and 3,780.63 is: 5,669.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.07 : 18,818.46 = 3,780.63 : x
  2. Step 2: Convert to fraction form
    12,548.07/18,818.46 = 3,780.63/x
  3. Step 3: Cross multiply
    12,548.07x = 18,818.46 × 3,780.63
  4. Step 4: Simplify right side
    12,548.07x = 71,145,634.43
  5. Step 5: Solve for x
    x = 71,145,634.43/12,548.07
  6. Step 6: Final answer
    x = 5,669.85

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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.