Home / 19,534.14-26,959.80-11,979.13

Finding the Fourth Proportional to 19,534.14, 26,959.80 and 11,979.13

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Solution

The fourth proportional to 19,534.14, 26,959.80 and 11,979.13 is: 16,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,534.14 : 26,959.80 = 11,979.13 : x
  2. Step 2: Convert to fraction form
    19,534.14/26,959.80 = 11,979.13/x
  3. Step 3: Cross multiply
    19,534.14x = 26,959.80 × 11,979.13
  4. Step 4: Simplify right side
    19,534.14x = 322,954,948.97
  5. Step 5: Solve for x
    x = 322,954,948.97/19,534.14
  6. Step 6: Final answer
    x = 16,532.85

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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.