Home / 18,940.74-26,133.54-11,385.57

Finding the Fourth Proportional to 18,940.74, 26,133.54 and 11,385.57

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Solution

The fourth proportional to 18,940.74, 26,133.54 and 11,385.57 is: 15,709.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.74 : 26,133.54 = 11,385.57 : x
  2. Step 2: Convert to fraction form
    18,940.74/26,133.54 = 11,385.57/x
  3. Step 3: Cross multiply
    18,940.74x = 26,133.54 × 11,385.57
  4. Step 4: Simplify right side
    18,940.74x = 297,545,249.02
  5. Step 5: Solve for x
    x = 297,545,249.02/18,940.74
  6. Step 6: Final answer
    x = 15,709.27

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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.