Home / 18,638.47-27,956.80-6,950.78

Finding the Fourth Proportional to 18,638.47, 27,956.80 and 6,950.78

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Solution

The fourth proportional to 18,638.47, 27,956.80 and 6,950.78 is: 10,425.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.47 : 27,956.80 = 6,950.78 : x
  2. Step 2: Convert to fraction form
    18,638.47/27,956.80 = 6,950.78/x
  3. Step 3: Cross multiply
    18,638.47x = 27,956.80 × 6,950.78
  4. Step 4: Simplify right side
    18,638.47x = 194,321,566.30
  5. Step 5: Solve for x
    x = 194,321,566.30/18,638.47
  6. Step 6: Final answer
    x = 10,425.83

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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.