Home / 9,212.40-13,818.60-2,638.44

Finding the Fourth Proportional to 9,212.40, 13,818.60 and 2,638.44

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Solution

The fourth proportional to 9,212.40, 13,818.60 and 2,638.44 is: 3,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.40 : 13,818.60 = 2,638.44 : x
  2. Step 2: Convert to fraction form
    9,212.40/13,818.60 = 2,638.44/x
  3. Step 3: Cross multiply
    9,212.40x = 13,818.60 × 2,638.44
  4. Step 4: Simplify right side
    9,212.40x = 36,459,546.98
  5. Step 5: Solve for x
    x = 36,459,546.98/9,212.40
  6. Step 6: Final answer
    x = 3,957.66

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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.