Home / 12,729.45-19,101.62-5,333.30

Finding the Fourth Proportional to 12,729.45, 19,101.62 and 5,333.30

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Solution

The fourth proportional to 12,729.45, 19,101.62 and 5,333.30 is: 8,003.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.45 : 19,101.62 = 5,333.30 : x
  2. Step 2: Convert to fraction form
    12,729.45/19,101.62 = 5,333.30/x
  3. Step 3: Cross multiply
    12,729.45x = 19,101.62 × 5,333.30
  4. Step 4: Simplify right side
    12,729.45x = 101,874,669.95
  5. Step 5: Solve for x
    x = 101,874,669.95/12,729.45
  6. Step 6: Final answer
    x = 8,003.07

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1.5x scale

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.