Home / 18,528.30-27,799.50-11,137.86

Finding the Fourth Proportional to 18,528.30, 27,799.50 and 11,137.86

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Solution

The fourth proportional to 18,528.30, 27,799.50 and 11,137.86 is: 16,711.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.30 : 27,799.50 = 11,137.86 : x
  2. Step 2: Convert to fraction form
    18,528.30/27,799.50 = 11,137.86/x
  3. Step 3: Cross multiply
    18,528.30x = 27,799.50 × 11,137.86
  4. Step 4: Simplify right side
    18,528.30x = 309,626,939.07
  5. Step 5: Solve for x
    x = 309,626,939.07/18,528.30
  6. Step 6: Final answer
    x = 16,711.03

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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.