Home / 13,932.64-19,227.36-7,645

Finding the Fourth Proportional to 13,932.64, 19,227.36 and 7,645

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Solution

The fourth proportional to 13,932.64, 19,227.36 and 7,645 is: 10,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.64 : 19,227.36 = 7,645 : x
  2. Step 2: Convert to fraction form
    13,932.64/19,227.36 = 7,645/x
  3. Step 3: Cross multiply
    13,932.64x = 19,227.36 × 7,645
  4. Step 4: Simplify right side
    13,932.64x = 146,993,167.20
  5. Step 5: Solve for x
    x = 146,993,167.20/13,932.64
  6. Step 6: Final answer
    x = 10,550.27

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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.