Home / 12,717.80-19,076.70-5,330.60

Finding the Fourth Proportional to 12,717.80, 19,076.70 and 5,330.60

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Solution

The fourth proportional to 12,717.80, 19,076.70 and 5,330.60 is: 7,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.80 : 19,076.70 = 5,330.60 : x
  2. Step 2: Convert to fraction form
    12,717.80/19,076.70 = 5,330.60/x
  3. Step 3: Cross multiply
    12,717.80x = 19,076.70 × 5,330.60
  4. Step 4: Simplify right side
    12,717.80x = 101,690,257.02
  5. Step 5: Solve for x
    x = 101,690,257.02/12,717.80
  6. Step 6: Final answer
    x = 7,995.90

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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.