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Finding the Fourth Proportional to 12,568.92, 18,882.72 and 11,859.59

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Solution

The fourth proportional to 12,568.92, 18,882.72 and 11,859.59 is: 17,817.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.92 : 18,882.72 = 11,859.59 : x
  2. Step 2: Convert to fraction form
    12,568.92/18,882.72 = 11,859.59/x
  3. Step 3: Cross multiply
    12,568.92x = 18,882.72 × 11,859.59
  4. Step 4: Simplify right side
    12,568.92x = 223,941,317.28
  5. Step 5: Solve for x
    x = 223,941,317.28/12,568.92
  6. Step 6: Final answer
    x = 17,817.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.