Home / 13,932.21-19,225.85-7,644.72

Finding the Fourth Proportional to 13,932.21, 19,225.85 and 7,644.72

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Solution

The fourth proportional to 13,932.21, 19,225.85 and 7,644.72 is: 10,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.21 : 19,225.85 = 7,644.72 : x
  2. Step 2: Convert to fraction form
    13,932.21/19,225.85 = 7,644.72/x
  3. Step 3: Cross multiply
    13,932.21x = 19,225.85 × 7,644.72
  4. Step 4: Simplify right side
    13,932.21x = 146,976,201.79
  5. Step 5: Solve for x
    x = 146,976,201.79/13,932.21
  6. Step 6: Final answer
    x = 10,549.38

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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.