Home / 11,213.20-16,818.45-4,638.61

Finding the Fourth Proportional to 11,213.20, 16,818.45 and 4,638.61

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Solution

The fourth proportional to 11,213.20, 16,818.45 and 4,638.61 is: 6,957.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.20 : 16,818.45 = 4,638.61 : x
  2. Step 2: Convert to fraction form
    11,213.20/16,818.45 = 4,638.61/x
  3. Step 3: Cross multiply
    11,213.20x = 16,818.45 × 4,638.61
  4. Step 4: Simplify right side
    11,213.20x = 78,014,230.35
  5. Step 5: Solve for x
    x = 78,014,230.35/11,213.20
  6. Step 6: Final answer
    x = 6,957.36

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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.