Home / 10,815.30-16,214.94-4,238.10

Finding the Fourth Proportional to 10,815.30, 16,214.94 and 4,238.10

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Solution

The fourth proportional to 10,815.30, 16,214.94 and 4,238.10 is: 6,354.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.30 : 16,214.94 = 4,238.10 : x
  2. Step 2: Convert to fraction form
    10,815.30/16,214.94 = 4,238.10/x
  3. Step 3: Cross multiply
    10,815.30x = 16,214.94 × 4,238.10
  4. Step 4: Simplify right side
    10,815.30x = 68,720,537.21
  5. Step 5: Solve for x
    x = 68,720,537.21/10,815.30
  6. Step 6: Final answer
    x = 6,354.01

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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.