Home / 18,713.32-28,066.78-6,231.92

Finding the Fourth Proportional to 18,713.32, 28,066.78 and 6,231.92

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Solution

The fourth proportional to 18,713.32, 28,066.78 and 6,231.92 is: 9,346.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.32 : 28,066.78 = 6,231.92 : x
  2. Step 2: Convert to fraction form
    18,713.32/28,066.78 = 6,231.92/x
  3. Step 3: Cross multiply
    18,713.32x = 28,066.78 × 6,231.92
  4. Step 4: Simplify right side
    18,713.32x = 174,909,927.62
  5. Step 5: Solve for x
    x = 174,909,927.62/18,713.32
  6. Step 6: Final answer
    x = 9,346.81

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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.