Home / 12,872.77-19,316.46-6,949.58

Finding the Fourth Proportional to 12,872.77, 19,316.46 and 6,949.58

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Solution

The fourth proportional to 12,872.77, 19,316.46 and 6,949.58 is: 10,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872.77 : 19,316.46 = 6,949.58 : x
  2. Step 2: Convert to fraction form
    12,872.77/19,316.46 = 6,949.58/x
  3. Step 3: Cross multiply
    12,872.77x = 19,316.46 × 6,949.58
  4. Step 4: Simplify right side
    12,872.77x = 134,241,283.13
  5. Step 5: Solve for x
    x = 134,241,283.13/12,872.77
  6. Step 6: Final answer
    x = 10,428.31

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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.