Home / 7,772.29-11,653.88-3,326.74

Finding the Fourth Proportional to 7,772.29, 11,653.88 and 3,326.74

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Solution

The fourth proportional to 7,772.29, 11,653.88 and 3,326.74 is: 4,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.29 : 11,653.88 = 3,326.74 : x
  2. Step 2: Convert to fraction form
    7,772.29/11,653.88 = 3,326.74/x
  3. Step 3: Cross multiply
    7,772.29x = 11,653.88 × 3,326.74
  4. Step 4: Simplify right side
    7,772.29x = 38,769,382.98
  5. Step 5: Solve for x
    x = 38,769,382.98/7,772.29
  6. Step 6: Final answer
    x = 4,988.16

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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.