Home / 18,447.81-27,678.66-11,057.58

Finding the Fourth Proportional to 18,447.81, 27,678.66 and 11,057.58

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Solution

The fourth proportional to 18,447.81, 27,678.66 and 11,057.58 is: 16,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.81 : 27,678.66 = 11,057.58 : x
  2. Step 2: Convert to fraction form
    18,447.81/27,678.66 = 11,057.58/x
  3. Step 3: Cross multiply
    18,447.81x = 27,678.66 × 11,057.58
  4. Step 4: Simplify right side
    18,447.81x = 306,058,997.24
  5. Step 5: Solve for x
    x = 306,058,997.24/18,447.81
  6. Step 6: Final answer
    x = 16,590.53

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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.