Home / 12,271.27-16,945.19-9,121.99

Finding the Fourth Proportional to 12,271.27, 16,945.19 and 9,121.99

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Solution

The fourth proportional to 12,271.27, 16,945.19 and 9,121.99 is: 12,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.27 : 16,945.19 = 9,121.99 : x
  2. Step 2: Convert to fraction form
    12,271.27/16,945.19 = 9,121.99/x
  3. Step 3: Cross multiply
    12,271.27x = 16,945.19 × 9,121.99
  4. Step 4: Simplify right side
    12,271.27x = 154,573,853.73
  5. Step 5: Solve for x
    x = 154,573,853.73/12,271.27
  6. Step 6: Final answer
    x = 12,596.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.