Home / 18,299.78-27,444.20-7,769.66

Finding the Fourth Proportional to 18,299.78, 27,444.20 and 7,769.66

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Solution

The fourth proportional to 18,299.78, 27,444.20 and 7,769.66 is: 11,652.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.78 : 27,444.20 = 7,769.66 : x
  2. Step 2: Convert to fraction form
    18,299.78/27,444.20 = 7,769.66/x
  3. Step 3: Cross multiply
    18,299.78x = 27,444.20 × 7,769.66
  4. Step 4: Simplify right side
    18,299.78x = 213,232,102.97
  5. Step 5: Solve for x
    x = 213,232,102.97/18,299.78
  6. Step 6: Final answer
    x = 11,652.17

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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.