Home / 19,091.76-26,340.28-11,540.40

Finding the Fourth Proportional to 19,091.76, 26,340.28 and 11,540.40

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Solution

The fourth proportional to 19,091.76, 26,340.28 and 11,540.40 is: 15,921.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.76 : 26,340.28 = 11,540.40 : x
  2. Step 2: Convert to fraction form
    19,091.76/26,340.28 = 11,540.40/x
  3. Step 3: Cross multiply
    19,091.76x = 26,340.28 × 11,540.40
  4. Step 4: Simplify right side
    19,091.76x = 303,977,367.31
  5. Step 5: Solve for x
    x = 303,977,367.31/19,091.76
  6. Step 6: Final answer
    x = 15,921.91

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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.