Home / 8,586.18-12,867.84-5,620.86

Finding the Fourth Proportional to 8,586.18, 12,867.84 and 5,620.86

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Solution

The fourth proportional to 8,586.18, 12,867.84 and 5,620.86 is: 8,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.18 : 12,867.84 = 5,620.86 : x
  2. Step 2: Convert to fraction form
    8,586.18/12,867.84 = 5,620.86/x
  3. Step 3: Cross multiply
    8,586.18x = 12,867.84 × 5,620.86
  4. Step 4: Simplify right side
    8,586.18x = 72,328,327.14
  5. Step 5: Solve for x
    x = 72,328,327.14/8,586.18
  6. Step 6: Final answer
    x = 8,423.81

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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.