Home / 18,378.96-27,561.80-6,367.86

Finding the Fourth Proportional to 18,378.96, 27,561.80 and 6,367.86

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Solution

The fourth proportional to 18,378.96, 27,561.80 and 6,367.86 is: 9,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.96 : 27,561.80 = 6,367.86 : x
  2. Step 2: Convert to fraction form
    18,378.96/27,561.80 = 6,367.86/x
  3. Step 3: Cross multiply
    18,378.96x = 27,561.80 × 6,367.86
  4. Step 4: Simplify right side
    18,378.96x = 175,509,683.75
  5. Step 5: Solve for x
    x = 175,509,683.75/18,378.96
  6. Step 6: Final answer
    x = 9,549.49

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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.