Home / 16,505.26-22,787.41-12,720.84

Finding the Fourth Proportional to 16,505.26, 22,787.41 and 12,720.84

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Solution

The fourth proportional to 16,505.26, 22,787.41 and 12,720.84 is: 17,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,505.26 : 22,787.41 = 12,720.84 : x
  2. Step 2: Convert to fraction form
    16,505.26/22,787.41 = 12,720.84/x
  3. Step 3: Cross multiply
    16,505.26x = 22,787.41 × 12,720.84
  4. Step 4: Simplify right side
    16,505.26x = 289,874,996.62
  5. Step 5: Solve for x
    x = 289,874,996.62/16,505.26
  6. Step 6: Final answer
    x = 17,562.58

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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.