Home / 8,542.86-12,812.24-4,380.72

Finding the Fourth Proportional to 8,542.86, 12,812.24 and 4,380.72

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Solution

The fourth proportional to 8,542.86, 12,812.24 and 4,380.72 is: 6,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.86 : 12,812.24 = 4,380.72 : x
  2. Step 2: Convert to fraction form
    8,542.86/12,812.24 = 4,380.72/x
  3. Step 3: Cross multiply
    8,542.86x = 12,812.24 × 4,380.72
  4. Step 4: Simplify right side
    8,542.86x = 56,126,836.01
  5. Step 5: Solve for x
    x = 56,126,836.01/8,542.86
  6. Step 6: Final answer
    x = 6,570.03

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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.