Home / 19,760.82-27,269.90-11,807.70

Finding the Fourth Proportional to 19,760.82, 27,269.90 and 11,807.70

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Solution

The fourth proportional to 19,760.82, 27,269.90 and 11,807.70 is: 16,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.82 : 27,269.90 = 11,807.70 : x
  2. Step 2: Convert to fraction form
    19,760.82/27,269.90 = 11,807.70/x
  3. Step 3: Cross multiply
    19,760.82x = 27,269.90 × 11,807.70
  4. Step 4: Simplify right side
    19,760.82x = 321,994,602.84
  5. Step 5: Solve for x
    x = 321,994,602.84/19,760.82
  6. Step 6: Final answer
    x = 16,294.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.