Home / 18,011.39-26,995.20-12,747.94

Finding the Fourth Proportional to 18,011.39, 26,995.20 and 12,747.94

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Solution

The fourth proportional to 18,011.39, 26,995.20 and 12,747.94 is: 19,106.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011.39 : 26,995.20 = 12,747.94 : x
  2. Step 2: Convert to fraction form
    18,011.39/26,995.20 = 12,747.94/x
  3. Step 3: Cross multiply
    18,011.39x = 26,995.20 × 12,747.94
  4. Step 4: Simplify right side
    18,011.39x = 344,133,189.89
  5. Step 5: Solve for x
    x = 344,133,189.89/18,011.39
  6. Step 6: Final answer
    x = 19,106.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.