Home / 17,949.78-26,911.23-12,387.24

Finding the Fourth Proportional to 17,949.78, 26,911.23 and 12,387.24

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Solution

The fourth proportional to 17,949.78, 26,911.23 and 12,387.24 is: 18,571.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,949.78 : 26,911.23 = 12,387.24 : x
  2. Step 2: Convert to fraction form
    17,949.78/26,911.23 = 12,387.24/x
  3. Step 3: Cross multiply
    17,949.78x = 26,911.23 × 12,387.24
  4. Step 4: Simplify right side
    17,949.78x = 333,355,864.71
  5. Step 5: Solve for x
    x = 333,355,864.71/17,949.78
  6. Step 6: Final answer
    x = 18,571.58

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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.