Home / 10,506.31-15,753.90-3,109.75

Finding the Fourth Proportional to 10,506.31, 15,753.90 and 3,109.75

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Solution

The fourth proportional to 10,506.31, 15,753.90 and 3,109.75 is: 4,662.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,506.31 : 15,753.90 = 3,109.75 : x
  2. Step 2: Convert to fraction form
    10,506.31/15,753.90 = 3,109.75/x
  3. Step 3: Cross multiply
    10,506.31x = 15,753.90 × 3,109.75
  4. Step 4: Simplify right side
    10,506.31x = 48,990,690.53
  5. Step 5: Solve for x
    x = 48,990,690.53/10,506.31
  6. Step 6: Final answer
    x = 4,662.98

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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.