Home / 9,185.08-12,660.75-7,241.61

Finding the Fourth Proportional to 9,185.08, 12,660.75 and 7,241.61

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Solution

The fourth proportional to 9,185.08, 12,660.75 and 7,241.61 is: 9,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,185.08 : 12,660.75 = 7,241.61 : x
  2. Step 2: Convert to fraction form
    9,185.08/12,660.75 = 7,241.61/x
  3. Step 3: Cross multiply
    9,185.08x = 12,660.75 × 7,241.61
  4. Step 4: Simplify right side
    9,185.08x = 91,684,240.96
  5. Step 5: Solve for x
    x = 91,684,240.96/9,185.08
  6. Step 6: Final answer
    x = 9,981.87

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Half scale
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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.