Home / 13,827.66-19,082.12-7,540.04

Finding the Fourth Proportional to 13,827.66, 19,082.12 and 7,540.04

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Solution

The fourth proportional to 13,827.66, 19,082.12 and 7,540.04 is: 10,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.66 : 19,082.12 = 7,540.04 : x
  2. Step 2: Convert to fraction form
    13,827.66/19,082.12 = 7,540.04/x
  3. Step 3: Cross multiply
    13,827.66x = 19,082.12 × 7,540.04
  4. Step 4: Simplify right side
    13,827.66x = 143,879,814.97
  5. Step 5: Solve for x
    x = 143,879,814.97/13,827.66
  6. Step 6: Final answer
    x = 10,405.22

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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.