Home / 12,738.64-19,080.30-7,793.28

Finding the Fourth Proportional to 12,738.64, 19,080.30 and 7,793.28

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Solution

The fourth proportional to 12,738.64, 19,080.30 and 7,793.28 is: 11,673.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.64 : 19,080.30 = 7,793.28 : x
  2. Step 2: Convert to fraction form
    12,738.64/19,080.30 = 7,793.28/x
  3. Step 3: Cross multiply
    12,738.64x = 19,080.30 × 7,793.28
  4. Step 4: Simplify right side
    12,738.64x = 148,698,120.38
  5. Step 5: Solve for x
    x = 148,698,120.38/12,738.64
  6. Step 6: Final answer
    x = 11,673.00

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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.