Home / 9,213.96-13,818.70-2,638.60

Finding the Fourth Proportional to 9,213.96, 13,818.70 and 2,638.60

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Solution

The fourth proportional to 9,213.96, 13,818.70 and 2,638.60 is: 3,957.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.96 : 13,818.70 = 2,638.60 : x
  2. Step 2: Convert to fraction form
    9,213.96/13,818.70 = 2,638.60/x
  3. Step 3: Cross multiply
    9,213.96x = 13,818.70 × 2,638.60
  4. Step 4: Simplify right side
    9,213.96x = 36,462,021.82
  5. Step 5: Solve for x
    x = 36,462,021.82/9,213.96
  6. Step 6: Final answer
    x = 3,957.26

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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.