Home / 18,826.05-25,980.33-11,272.71

Finding the Fourth Proportional to 18,826.05, 25,980.33 and 11,272.71

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Solution

The fourth proportional to 18,826.05, 25,980.33 and 11,272.71 is: 15,556.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.05 : 25,980.33 = 11,272.71 : x
  2. Step 2: Convert to fraction form
    18,826.05/25,980.33 = 11,272.71/x
  3. Step 3: Cross multiply
    18,826.05x = 25,980.33 × 11,272.71
  4. Step 4: Simplify right side
    18,826.05x = 292,868,725.79
  5. Step 5: Solve for x
    x = 292,868,725.79/18,826.05
  6. Step 6: Final answer
    x = 15,556.57

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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.