Home / 12,799.78-19,201.28-5,007.58

Finding the Fourth Proportional to 12,799.78, 19,201.28 and 5,007.58

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Solution

The fourth proportional to 12,799.78, 19,201.28 and 5,007.58 is: 7,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.78 : 19,201.28 = 5,007.58 : x
  2. Step 2: Convert to fraction form
    12,799.78/19,201.28 = 5,007.58/x
  3. Step 3: Cross multiply
    12,799.78x = 19,201.28 × 5,007.58
  4. Step 4: Simplify right side
    12,799.78x = 96,151,872.66
  5. Step 5: Solve for x
    x = 96,151,872.66/12,799.78
  6. Step 6: Final answer
    x = 7,512.00

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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.