Home / 18,961.16-26,167.41-11,409.87

Finding the Fourth Proportional to 18,961.16, 26,167.41 and 11,409.87

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Solution

The fourth proportional to 18,961.16, 26,167.41 and 11,409.87 is: 15,746.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.16 : 26,167.41 = 11,409.87 : x
  2. Step 2: Convert to fraction form
    18,961.16/26,167.41 = 11,409.87/x
  3. Step 3: Cross multiply
    18,961.16x = 26,167.41 × 11,409.87
  4. Step 4: Simplify right side
    18,961.16x = 298,566,746.34
  5. Step 5: Solve for x
    x = 298,566,746.34/18,961.16
  6. Step 6: Final answer
    x = 15,746.23

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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.