Home / 19,386.07-26,755.72-11,836.80

Finding the Fourth Proportional to 19,386.07, 26,755.72 and 11,836.80

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Solution

The fourth proportional to 19,386.07, 26,755.72 and 11,836.80 is: 16,336.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.07 : 26,755.72 = 11,836.80 : x
  2. Step 2: Convert to fraction form
    19,386.07/26,755.72 = 11,836.80/x
  3. Step 3: Cross multiply
    19,386.07x = 26,755.72 × 11,836.80
  4. Step 4: Simplify right side
    19,386.07x = 316,702,076.90
  5. Step 5: Solve for x
    x = 316,702,076.90/19,386.07
  6. Step 6: Final answer
    x = 16,336.58

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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.