Home / 19,694.07-27,178.34-12,038.56

Finding the Fourth Proportional to 19,694.07, 27,178.34 and 12,038.56

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Solution

The fourth proportional to 19,694.07, 27,178.34 and 12,038.56 is: 16,613.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.07 : 27,178.34 = 12,038.56 : x
  2. Step 2: Convert to fraction form
    19,694.07/27,178.34 = 12,038.56/x
  3. Step 3: Cross multiply
    19,694.07x = 27,178.34 × 12,038.56
  4. Step 4: Simplify right side
    19,694.07x = 327,187,948.65
  5. Step 5: Solve for x
    x = 327,187,948.65/19,694.07
  6. Step 6: Final answer
    x = 16,613.53

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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.