Home / 18,898.62-28,330.40-8,363.04

Finding the Fourth Proportional to 18,898.62, 28,330.40 and 8,363.04

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Solution

The fourth proportional to 18,898.62, 28,330.40 and 8,363.04 is: 12,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.62 : 28,330.40 = 8,363.04 : x
  2. Step 2: Convert to fraction form
    18,898.62/28,330.40 = 8,363.04/x
  3. Step 3: Cross multiply
    18,898.62x = 28,330.40 × 8,363.04
  4. Step 4: Simplify right side
    18,898.62x = 236,928,268.42
  5. Step 5: Solve for x
    x = 236,928,268.42/18,898.62
  6. Step 6: Final answer
    x = 12,536.80

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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.