Home / 12,107.88-16,708.55-6,730.02

Finding the Fourth Proportional to 12,107.88, 16,708.55 and 6,730.02

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Solution

The fourth proportional to 12,107.88, 16,708.55 and 6,730.02 is: 9,287.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.88 : 16,708.55 = 6,730.02 : x
  2. Step 2: Convert to fraction form
    12,107.88/16,708.55 = 6,730.02/x
  3. Step 3: Cross multiply
    12,107.88x = 16,708.55 × 6,730.02
  4. Step 4: Simplify right side
    12,107.88x = 112,448,842.02
  5. Step 5: Solve for x
    x = 112,448,842.02/12,107.88
  6. Step 6: Final answer
    x = 9,287.24

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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.