Home / 13,929.33-19,175.63-12,066.74

Finding the Fourth Proportional to 13,929.33, 19,175.63 and 12,066.74

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Solution

The fourth proportional to 13,929.33, 19,175.63 and 12,066.74 is: 16,611.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.33 : 19,175.63 = 12,066.74 : x
  2. Step 2: Convert to fraction form
    13,929.33/19,175.63 = 12,066.74/x
  3. Step 3: Cross multiply
    13,929.33x = 19,175.63 × 12,066.74
  4. Step 4: Simplify right side
    13,929.33x = 231,387,185.33
  5. Step 5: Solve for x
    x = 231,387,185.33/13,929.33
  6. Step 6: Final answer
    x = 16,611.51

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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.