Home / 19,864.87-27,414.25-11,905.56

Finding the Fourth Proportional to 19,864.87, 27,414.25 and 11,905.56

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Solution

The fourth proportional to 19,864.87, 27,414.25 and 11,905.56 is: 16,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.87 : 27,414.25 = 11,905.56 : x
  2. Step 2: Convert to fraction form
    19,864.87/27,414.25 = 11,905.56/x
  3. Step 3: Cross multiply
    19,864.87x = 27,414.25 × 11,905.56
  4. Step 4: Simplify right side
    19,864.87x = 326,381,968.47
  5. Step 5: Solve for x
    x = 326,381,968.47/19,864.87
  6. Step 6: Final answer
    x = 16,430.11

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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.