Home / 19,651.52-27,108.96-12,186.56

Finding the Fourth Proportional to 19,651.52, 27,108.96 and 12,186.56

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Solution

The fourth proportional to 19,651.52, 27,108.96 and 12,186.56 is: 16,811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.52 : 27,108.96 = 12,186.56 : x
  2. Step 2: Convert to fraction form
    19,651.52/27,108.96 = 12,186.56/x
  3. Step 3: Cross multiply
    19,651.52x = 27,108.96 × 12,186.56
  4. Step 4: Simplify right side
    19,651.52x = 330,364,967.58
  5. Step 5: Solve for x
    x = 330,364,967.58/19,651.52
  6. Step 6: Final answer
    x = 16,811.17

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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.