Home / 18,859.91-26,044.07-12,157.09

Finding the Fourth Proportional to 18,859.91, 26,044.07 and 12,157.09

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Solution

The fourth proportional to 18,859.91, 26,044.07 and 12,157.09 is: 16,787.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.91 : 26,044.07 = 12,157.09 : x
  2. Step 2: Convert to fraction form
    18,859.91/26,044.07 = 12,157.09/x
  3. Step 3: Cross multiply
    18,859.91x = 26,044.07 × 12,157.09
  4. Step 4: Simplify right side
    18,859.91x = 316,619,977.06
  5. Step 5: Solve for x
    x = 316,619,977.06/18,859.91
  6. Step 6: Final answer
    x = 16,787.99

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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.