Home / 19,646.20-27,113.08-11,992.72

Finding the Fourth Proportional to 19,646.20, 27,113.08 and 11,992.72

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Solution

The fourth proportional to 19,646.20, 27,113.08 and 11,992.72 is: 16,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646.20 : 27,113.08 = 11,992.72 : x
  2. Step 2: Convert to fraction form
    19,646.20/27,113.08 = 11,992.72/x
  3. Step 3: Cross multiply
    19,646.20x = 27,113.08 × 11,992.72
  4. Step 4: Simplify right side
    19,646.20x = 325,159,576.78
  5. Step 5: Solve for x
    x = 325,159,576.78/19,646.20
  6. Step 6: Final answer
    x = 16,550.76

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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.