Home / 8,586.89-12,862.64-4,131.39

Finding the Fourth Proportional to 8,586.89, 12,862.64 and 4,131.39

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Solution

The fourth proportional to 8,586.89, 12,862.64 and 4,131.39 is: 6,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.89 : 12,862.64 = 4,131.39 : x
  2. Step 2: Convert to fraction form
    8,586.89/12,862.64 = 4,131.39/x
  3. Step 3: Cross multiply
    8,586.89x = 12,862.64 × 4,131.39
  4. Step 4: Simplify right side
    8,586.89x = 53,140,561.61
  5. Step 5: Solve for x
    x = 53,140,561.61/8,586.89
  6. Step 6: Final answer
    x = 6,188.57

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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.