Home / 12,876.08-19,318.02-5,383.28

Finding the Fourth Proportional to 12,876.08, 19,318.02 and 5,383.28

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Solution

The fourth proportional to 12,876.08, 19,318.02 and 5,383.28 is: 8,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.08 : 19,318.02 = 5,383.28 : x
  2. Step 2: Convert to fraction form
    12,876.08/19,318.02 = 5,383.28/x
  3. Step 3: Cross multiply
    12,876.08x = 19,318.02 × 5,383.28
  4. Step 4: Simplify right side
    12,876.08x = 103,994,310.71
  5. Step 5: Solve for x
    x = 103,994,310.71/12,876.08
  6. Step 6: Final answer
    x = 8,076.55

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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.