Home / 14,091.16-21,123.10-7,845.48

Finding the Fourth Proportional to 14,091.16, 21,123.10 and 7,845.48

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Solution

The fourth proportional to 14,091.16, 21,123.10 and 7,845.48 is: 11,760.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.16 : 21,123.10 = 7,845.48 : x
  2. Step 2: Convert to fraction form
    14,091.16/21,123.10 = 7,845.48/x
  3. Step 3: Cross multiply
    14,091.16x = 21,123.10 × 7,845.48
  4. Step 4: Simplify right side
    14,091.16x = 165,720,858.59
  5. Step 5: Solve for x
    x = 165,720,858.59/14,091.16
  6. Step 6: Final answer
    x = 11,760.63

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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.