Home / 8,310.86-12,455.90-4,152.04

Finding the Fourth Proportional to 8,310.86, 12,455.90 and 4,152.04

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Solution

The fourth proportional to 8,310.86, 12,455.90 and 4,152.04 is: 6,222.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.86 : 12,455.90 = 4,152.04 : x
  2. Step 2: Convert to fraction form
    8,310.86/12,455.90 = 4,152.04/x
  3. Step 3: Cross multiply
    8,310.86x = 12,455.90 × 4,152.04
  4. Step 4: Simplify right side
    8,310.86x = 51,717,358.71
  5. Step 5: Solve for x
    x = 51,717,358.71/8,310.86
  6. Step 6: Final answer
    x = 6,222.86

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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.