Home / 9,284.38-12,812.69-5,305.41

Finding the Fourth Proportional to 9,284.38, 12,812.69 and 5,305.41

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Solution

The fourth proportional to 9,284.38, 12,812.69 and 5,305.41 is: 7,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,284.38 : 12,812.69 = 5,305.41 : x
  2. Step 2: Convert to fraction form
    9,284.38/12,812.69 = 5,305.41/x
  3. Step 3: Cross multiply
    9,284.38x = 12,812.69 × 5,305.41
  4. Step 4: Simplify right side
    9,284.38x = 67,976,586.92
  5. Step 5: Solve for x
    x = 67,976,586.92/9,284.38
  6. Step 6: Final answer
    x = 7,321.61

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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.