Home / 18,812.34-28,222.29-6,331.86

Finding the Fourth Proportional to 18,812.34, 28,222.29 and 6,331.86

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Solution

The fourth proportional to 18,812.34, 28,222.29 and 6,331.86 is: 9,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.34 : 28,222.29 = 6,331.86 : x
  2. Step 2: Convert to fraction form
    18,812.34/28,222.29 = 6,331.86/x
  3. Step 3: Cross multiply
    18,812.34x = 28,222.29 × 6,331.86
  4. Step 4: Simplify right side
    18,812.34x = 178,699,589.16
  5. Step 5: Solve for x
    x = 178,699,589.16/18,812.34
  6. Step 6: Final answer
    x = 9,499.06

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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.