Home / 8,128.07-12,192.58-2,285.14

Finding the Fourth Proportional to 8,128.07, 12,192.58 and 2,285.14

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Solution

The fourth proportional to 8,128.07, 12,192.58 and 2,285.14 is: 3,427.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.07 : 12,192.58 = 2,285.14 : x
  2. Step 2: Convert to fraction form
    8,128.07/12,192.58 = 2,285.14/x
  3. Step 3: Cross multiply
    8,128.07x = 12,192.58 × 2,285.14
  4. Step 4: Simplify right side
    8,128.07x = 27,861,752.26
  5. Step 5: Solve for x
    x = 27,861,752.26/8,128.07
  6. Step 6: Final answer
    x = 3,427.84

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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.