Home / 9,507.98-13,120.71-6,679.46

Finding the Fourth Proportional to 9,507.98, 13,120.71 and 6,679.46

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Solution

The fourth proportional to 9,507.98, 13,120.71 and 6,679.46 is: 9,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,507.98 : 13,120.71 = 6,679.46 : x
  2. Step 2: Convert to fraction form
    9,507.98/13,120.71 = 6,679.46/x
  3. Step 3: Cross multiply
    9,507.98x = 13,120.71 × 6,679.46
  4. Step 4: Simplify right side
    9,507.98x = 87,639,257.62
  5. Step 5: Solve for x
    x = 87,639,257.62/9,507.98
  6. Step 6: Final answer
    x = 9,217.44

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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.