Home / 11,479.46-15,839.72-6,764.68

Finding the Fourth Proportional to 11,479.46, 15,839.72 and 6,764.68

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Solution

The fourth proportional to 11,479.46, 15,839.72 and 6,764.68 is: 9,334.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.46 : 15,839.72 = 6,764.68 : x
  2. Step 2: Convert to fraction form
    11,479.46/15,839.72 = 6,764.68/x
  3. Step 3: Cross multiply
    11,479.46x = 15,839.72 × 6,764.68
  4. Step 4: Simplify right side
    11,479.46x = 107,150,637.09
  5. Step 5: Solve for x
    x = 107,150,637.09/11,479.46
  6. Step 6: Final answer
    x = 9,334.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.