Home / 7,823.84-11,739.56-3,440.74

Finding the Fourth Proportional to 7,823.84, 11,739.56 and 3,440.74

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Solution

The fourth proportional to 7,823.84, 11,739.56 and 3,440.74 is: 5,162.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.84 : 11,739.56 = 3,440.74 : x
  2. Step 2: Convert to fraction form
    7,823.84/11,739.56 = 3,440.74/x
  3. Step 3: Cross multiply
    7,823.84x = 11,739.56 × 3,440.74
  4. Step 4: Simplify right side
    7,823.84x = 40,392,773.67
  5. Step 5: Solve for x
    x = 40,392,773.67/7,823.84
  6. Step 6: Final answer
    x = 5,162.78

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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.