Home / 18,772.10-28,149.04-7,086.24

Finding the Fourth Proportional to 18,772.10, 28,149.04 and 7,086.24

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Solution

The fourth proportional to 18,772.10, 28,149.04 and 7,086.24 is: 10,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.10 : 28,149.04 = 7,086.24 : x
  2. Step 2: Convert to fraction form
    18,772.10/28,149.04 = 7,086.24/x
  3. Step 3: Cross multiply
    18,772.10x = 28,149.04 × 7,086.24
  4. Step 4: Simplify right side
    18,772.10x = 199,470,853.21
  5. Step 5: Solve for x
    x = 199,470,853.21/18,772.10
  6. Step 6: Final answer
    x = 10,625.92

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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.