Home / 19,451.34-26,842.41-11,897.78

Finding the Fourth Proportional to 19,451.34, 26,842.41 and 11,897.78

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Solution

The fourth proportional to 19,451.34, 26,842.41 and 11,897.78 is: 16,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.34 : 26,842.41 = 11,897.78 : x
  2. Step 2: Convert to fraction form
    19,451.34/26,842.41 = 11,897.78/x
  3. Step 3: Cross multiply
    19,451.34x = 26,842.41 × 11,897.78
  4. Step 4: Simplify right side
    19,451.34x = 319,364,954.64
  5. Step 5: Solve for x
    x = 319,364,954.64/19,451.34
  6. Step 6: Final answer
    x = 16,418.66

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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.