Home / 12,243.28-18,364.44-3,923.74

Finding the Fourth Proportional to 12,243.28, 18,364.44 and 3,923.74

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Solution

The fourth proportional to 12,243.28, 18,364.44 and 3,923.74 is: 5,885.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.28 : 18,364.44 = 3,923.74 : x
  2. Step 2: Convert to fraction form
    12,243.28/18,364.44 = 3,923.74/x
  3. Step 3: Cross multiply
    12,243.28x = 18,364.44 × 3,923.74
  4. Step 4: Simplify right side
    12,243.28x = 72,057,287.81
  5. Step 5: Solve for x
    x = 72,057,287.81/12,243.28
  6. Step 6: Final answer
    x = 5,885.46

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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.