Home / 18,735.76-28,107.68-5,589.20

Finding the Fourth Proportional to 18,735.76, 28,107.68 and 5,589.20

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Solution

The fourth proportional to 18,735.76, 28,107.68 and 5,589.20 is: 8,385.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.76 : 28,107.68 = 5,589.20 : x
  2. Step 2: Convert to fraction form
    18,735.76/28,107.68 = 5,589.20/x
  3. Step 3: Cross multiply
    18,735.76x = 28,107.68 × 5,589.20
  4. Step 4: Simplify right side
    18,735.76x = 157,099,445.06
  5. Step 5: Solve for x
    x = 157,099,445.06/18,735.76
  6. Step 6: Final answer
    x = 8,385.01

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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.