Home / 13,830.60-20,745.90-5,061.96

Finding the Fourth Proportional to 13,830.60, 20,745.90 and 5,061.96

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Solution

The fourth proportional to 13,830.60, 20,745.90 and 5,061.96 is: 7,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.60 : 20,745.90 = 5,061.96 : x
  2. Step 2: Convert to fraction form
    13,830.60/20,745.90 = 5,061.96/x
  3. Step 3: Cross multiply
    13,830.60x = 20,745.90 × 5,061.96
  4. Step 4: Simplify right side
    13,830.60x = 105,014,915.96
  5. Step 5: Solve for x
    x = 105,014,915.96/13,830.60
  6. Step 6: Final answer
    x = 7,592.94

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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.