Home / 18,891.96-26,056.26-12,178.68

Finding the Fourth Proportional to 18,891.96, 26,056.26 and 12,178.68

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Solution

The fourth proportional to 18,891.96, 26,056.26 and 12,178.68 is: 16,797.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.96 : 26,056.26 = 12,178.68 : x
  2. Step 2: Convert to fraction form
    18,891.96/26,056.26 = 12,178.68/x
  3. Step 3: Cross multiply
    18,891.96x = 26,056.26 × 12,178.68
  4. Step 4: Simplify right side
    18,891.96x = 317,330,852.54
  5. Step 5: Solve for x
    x = 317,330,852.54/18,891.96
  6. Step 6: Final answer
    x = 16,797.14

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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.