Home / 18,834.62-28,256.49-5,686.20

Finding the Fourth Proportional to 18,834.62, 28,256.49 and 5,686.20

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Solution

The fourth proportional to 18,834.62, 28,256.49 and 5,686.20 is: 8,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.62 : 28,256.49 = 5,686.20 : x
  2. Step 2: Convert to fraction form
    18,834.62/28,256.49 = 5,686.20/x
  3. Step 3: Cross multiply
    18,834.62x = 28,256.49 × 5,686.20
  4. Step 4: Simplify right side
    18,834.62x = 160,672,053.44
  5. Step 5: Solve for x
    x = 160,672,053.44/18,834.62
  6. Step 6: Final answer
    x = 8,530.68

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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.