Home / 19,553.14-26,976.26-12,842.40

Finding the Fourth Proportional to 19,553.14, 26,976.26 and 12,842.40

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Solution

The fourth proportional to 19,553.14, 26,976.26 and 12,842.40 is: 17,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,553.14 : 26,976.26 = 12,842.40 : x
  2. Step 2: Convert to fraction form
    19,553.14/26,976.26 = 12,842.40/x
  3. Step 3: Cross multiply
    19,553.14x = 26,976.26 × 12,842.40
  4. Step 4: Simplify right side
    19,553.14x = 346,439,857.21
  5. Step 5: Solve for x
    x = 346,439,857.21/19,553.14
  6. Step 6: Final answer
    x = 17,717.87

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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.