Home / 17,977.57-26,975.47-12,121.88

Finding the Fourth Proportional to 17,977.57, 26,975.47 and 12,121.88

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Solution

The fourth proportional to 17,977.57, 26,975.47 and 12,121.88 is: 18,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,977.57 : 26,975.47 = 12,121.88 : x
  2. Step 2: Convert to fraction form
    17,977.57/26,975.47 = 12,121.88/x
  3. Step 3: Cross multiply
    17,977.57x = 26,975.47 × 12,121.88
  4. Step 4: Simplify right side
    17,977.57x = 326,993,275.41
  5. Step 5: Solve for x
    x = 326,993,275.41/17,977.57
  6. Step 6: Final answer
    x = 18,188.96

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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.