Home / 19,668.38-27,134.66-12,957.53

Finding the Fourth Proportional to 19,668.38, 27,134.66 and 12,957.53

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Solution

The fourth proportional to 19,668.38, 27,134.66 and 12,957.53 is: 17,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.38 : 27,134.66 = 12,957.53 : x
  2. Step 2: Convert to fraction form
    19,668.38/27,134.66 = 12,957.53/x
  3. Step 3: Cross multiply
    19,668.38x = 27,134.66 × 12,957.53
  4. Step 4: Simplify right side
    19,668.38x = 351,598,067.71
  5. Step 5: Solve for x
    x = 351,598,067.71/19,668.38
  6. Step 6: Final answer
    x = 17,876.32

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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.