Home / 13,919.68-19,208.16-7,631.04

Finding the Fourth Proportional to 13,919.68, 19,208.16 and 7,631.04

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Solution

The fourth proportional to 13,919.68, 19,208.16 and 7,631.04 is: 10,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.68 : 19,208.16 = 7,631.04 : x
  2. Step 2: Convert to fraction form
    13,919.68/19,208.16 = 7,631.04/x
  3. Step 3: Cross multiply
    13,919.68x = 19,208.16 × 7,631.04
  4. Step 4: Simplify right side
    13,919.68x = 146,578,237.29
  5. Step 5: Solve for x
    x = 146,578,237.29/13,919.68
  6. Step 6: Final answer
    x = 10,530.29

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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.