Home / 18,912.14-26,097.16-11,149.72

Finding the Fourth Proportional to 18,912.14, 26,097.16 and 11,149.72

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Solution

The fourth proportional to 18,912.14, 26,097.16 and 11,149.72 is: 15,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.14 : 26,097.16 = 11,149.72 : x
  2. Step 2: Convert to fraction form
    18,912.14/26,097.16 = 11,149.72/x
  3. Step 3: Cross multiply
    18,912.14x = 26,097.16 × 11,149.72
  4. Step 4: Simplify right side
    18,912.14x = 290,976,026.80
  5. Step 5: Solve for x
    x = 290,976,026.80/18,912.14
  6. Step 6: Final answer
    x = 15,385.67

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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.