Home / 18,427.76-27,645.79-6,740.88

Finding the Fourth Proportional to 18,427.76, 27,645.79 and 6,740.88

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Solution

The fourth proportional to 18,427.76, 27,645.79 and 6,740.88 is: 10,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.76 : 27,645.79 = 6,740.88 : x
  2. Step 2: Convert to fraction form
    18,427.76/27,645.79 = 6,740.88/x
  3. Step 3: Cross multiply
    18,427.76x = 27,645.79 × 6,740.88
  4. Step 4: Simplify right side
    18,427.76x = 186,356,952.90
  5. Step 5: Solve for x
    x = 186,356,952.90/18,427.76
  6. Step 6: Final answer
    x = 10,112.84

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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.