Home / 18,899.51-26,078.13-10,940.36

Finding the Fourth Proportional to 18,899.51, 26,078.13 and 10,940.36

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Solution

The fourth proportional to 18,899.51, 26,078.13 and 10,940.36 is: 15,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.51 : 26,078.13 = 10,940.36 : x
  2. Step 2: Convert to fraction form
    18,899.51/26,078.13 = 10,940.36/x
  3. Step 3: Cross multiply
    18,899.51x = 26,078.13 × 10,940.36
  4. Step 4: Simplify right side
    18,899.51x = 285,303,999.94
  5. Step 5: Solve for x
    x = 285,303,999.94/18,899.51
  6. Step 6: Final answer
    x = 15,095.85

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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.