Home / 18,810.30-28,217.10-6,325.86

Finding the Fourth Proportional to 18,810.30, 28,217.10 and 6,325.86

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Solution

The fourth proportional to 18,810.30, 28,217.10 and 6,325.86 is: 9,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.30 : 28,217.10 = 6,325.86 : x
  2. Step 2: Convert to fraction form
    18,810.30/28,217.10 = 6,325.86/x
  3. Step 3: Cross multiply
    18,810.30x = 28,217.10 × 6,325.86
  4. Step 4: Simplify right side
    18,810.30x = 178,497,424.21
  5. Step 5: Solve for x
    x = 178,497,424.21/18,810.30
  6. Step 6: Final answer
    x = 9,489.34

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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.