Home / 18,525.90-27,787.86-5,199.80

Finding the Fourth Proportional to 18,525.90, 27,787.86 and 5,199.80

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Solution

The fourth proportional to 18,525.90, 27,787.86 and 5,199.80 is: 7,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.90 : 27,787.86 = 5,199.80 : x
  2. Step 2: Convert to fraction form
    18,525.90/27,787.86 = 5,199.80/x
  3. Step 3: Cross multiply
    18,525.90x = 27,787.86 × 5,199.80
  4. Step 4: Simplify right side
    18,525.90x = 144,491,314.43
  5. Step 5: Solve for x
    x = 144,491,314.43/18,525.90
  6. Step 6: Final answer
    x = 7,799.42

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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.