Home / 7,821.98-11,733.06-3,660.74

Finding the Fourth Proportional to 7,821.98, 11,733.06 and 3,660.74

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Solution

The fourth proportional to 7,821.98, 11,733.06 and 3,660.74 is: 5,491.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.98 : 11,733.06 = 3,660.74 : x
  2. Step 2: Convert to fraction form
    7,821.98/11,733.06 = 3,660.74/x
  3. Step 3: Cross multiply
    7,821.98x = 11,733.06 × 3,660.74
  4. Step 4: Simplify right side
    7,821.98x = 42,951,682.06
  5. Step 5: Solve for x
    x = 42,951,682.06/7,821.98
  6. Step 6: Final answer
    x = 5,491.15

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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.