Home / 12,949.62-19,428.06-5,159.04

Finding the Fourth Proportional to 12,949.62, 19,428.06 and 5,159.04

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Solution

The fourth proportional to 12,949.62, 19,428.06 and 5,159.04 is: 7,740.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.62 : 19,428.06 = 5,159.04 : x
  2. Step 2: Convert to fraction form
    12,949.62/19,428.06 = 5,159.04/x
  3. Step 3: Cross multiply
    12,949.62x = 19,428.06 × 5,159.04
  4. Step 4: Simplify right side
    12,949.62x = 100,230,138.66
  5. Step 5: Solve for x
    x = 100,230,138.66/12,949.62
  6. Step 6: Final answer
    x = 7,740.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.