Home / 19,553.89-26,977.29-12,843.15

Finding the Fourth Proportional to 19,553.89, 26,977.29 and 12,843.15

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Solution

The fourth proportional to 19,553.89, 26,977.29 and 12,843.15 is: 17,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,553.89 : 26,977.29 = 12,843.15 : x
  2. Step 2: Convert to fraction form
    19,553.89/26,977.29 = 12,843.15/x
  3. Step 3: Cross multiply
    19,553.89x = 26,977.29 × 12,843.15
  4. Step 4: Simplify right side
    19,553.89x = 346,473,382.06
  5. Step 5: Solve for x
    x = 346,473,382.06/19,553.89
  6. Step 6: Final answer
    x = 17,718.90

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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.