Home / 9,212.58-13,818.83-2,638.79

Finding the Fourth Proportional to 9,212.58, 13,818.83 and 2,638.79

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Solution

The fourth proportional to 9,212.58, 13,818.83 and 2,638.79 is: 3,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.58 : 13,818.83 = 2,638.79 : x
  2. Step 2: Convert to fraction form
    9,212.58/13,818.83 = 2,638.79/x
  3. Step 3: Cross multiply
    9,212.58x = 13,818.83 × 2,638.79
  4. Step 4: Simplify right side
    9,212.58x = 36,464,908.13
  5. Step 5: Solve for x
    x = 36,464,908.13/9,212.58
  6. Step 6: Final answer
    x = 3,958.16

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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.