Home / 9,215.06-13,819.76-2,639.48

Finding the Fourth Proportional to 9,215.06, 13,819.76 and 2,639.48

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Solution

The fourth proportional to 9,215.06, 13,819.76 and 2,639.48 is: 3,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.06 : 13,819.76 = 2,639.48 : x
  2. Step 2: Convert to fraction form
    9,215.06/13,819.76 = 2,639.48/x
  3. Step 3: Cross multiply
    9,215.06x = 13,819.76 × 2,639.48
  4. Step 4: Simplify right side
    9,215.06x = 36,476,966.93
  5. Step 5: Solve for x
    x = 36,476,966.93/9,215.06
  6. Step 6: Final answer
    x = 3,958.41

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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.