Home / 13,931.94-19,226.38-7,644.32

Finding the Fourth Proportional to 13,931.94, 19,226.38 and 7,644.32

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Solution

The fourth proportional to 13,931.94, 19,226.38 and 7,644.32 is: 10,549.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.94 : 19,226.38 = 7,644.32 : x
  2. Step 2: Convert to fraction form
    13,931.94/19,226.38 = 7,644.32/x
  3. Step 3: Cross multiply
    13,931.94x = 19,226.38 × 7,644.32
  4. Step 4: Simplify right side
    13,931.94x = 146,972,601.16
  5. Step 5: Solve for x
    x = 146,972,601.16/13,931.94
  6. Step 6: Final answer
    x = 10,549.33

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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.