Home / 15,871.88-23,808.30-4,778.60

Finding the Fourth Proportional to 15,871.88, 23,808.30 and 4,778.60

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Solution

The fourth proportional to 15,871.88, 23,808.30 and 4,778.60 is: 7,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.88 : 23,808.30 = 4,778.60 : x
  2. Step 2: Convert to fraction form
    15,871.88/23,808.30 = 4,778.60/x
  3. Step 3: Cross multiply
    15,871.88x = 23,808.30 × 4,778.60
  4. Step 4: Simplify right side
    15,871.88x = 113,770,342.38
  5. Step 5: Solve for x
    x = 113,770,342.38/15,871.88
  6. Step 6: Final answer
    x = 7,168.04

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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.