Home / 19,007.56-28,516.20-7,910.56

Finding the Fourth Proportional to 19,007.56, 28,516.20 and 7,910.56

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Solution

The fourth proportional to 19,007.56, 28,516.20 and 7,910.56 is: 11,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.56 : 28,516.20 = 7,910.56 : x
  2. Step 2: Convert to fraction form
    19,007.56/28,516.20 = 7,910.56/x
  3. Step 3: Cross multiply
    19,007.56x = 28,516.20 × 7,910.56
  4. Step 4: Simplify right side
    19,007.56x = 225,579,111.07
  5. Step 5: Solve for x
    x = 225,579,111.07/19,007.56
  6. Step 6: Final answer
    x = 11,867.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.