Home / 18,905.61-26,089.73-11,732.85

Finding the Fourth Proportional to 18,905.61, 26,089.73 and 11,732.85

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Solution

The fourth proportional to 18,905.61, 26,089.73 and 11,732.85 is: 16,191.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.61 : 26,089.73 = 11,732.85 : x
  2. Step 2: Convert to fraction form
    18,905.61/26,089.73 = 11,732.85/x
  3. Step 3: Cross multiply
    18,905.61x = 26,089.73 × 11,732.85
  4. Step 4: Simplify right side
    18,905.61x = 306,106,829.97
  5. Step 5: Solve for x
    x = 306,106,829.97/18,905.61
  6. Step 6: Final answer
    x = 16,191.32

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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.