Home / 13,918.62-19,207.35-7,949.91

Finding the Fourth Proportional to 13,918.62, 19,207.35 and 7,949.91

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Solution

The fourth proportional to 13,918.62, 19,207.35 and 7,949.91 is: 10,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.62 : 19,207.35 = 7,949.91 : x
  2. Step 2: Convert to fraction form
    13,918.62/19,207.35 = 7,949.91/x
  3. Step 3: Cross multiply
    13,918.62x = 19,207.35 × 7,949.91
  4. Step 4: Simplify right side
    13,918.62x = 152,696,703.84
  5. Step 5: Solve for x
    x = 152,696,703.84/13,918.62
  6. Step 6: Final answer
    x = 10,970.68

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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.