Home / 13,671.60-20,490.96-5,771.04

Finding the Fourth Proportional to 13,671.60, 20,490.96 and 5,771.04

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Solution

The fourth proportional to 13,671.60, 20,490.96 and 5,771.04 is: 8,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.60 : 20,490.96 = 5,771.04 : x
  2. Step 2: Convert to fraction form
    13,671.60/20,490.96 = 5,771.04/x
  3. Step 3: Cross multiply
    13,671.60x = 20,490.96 × 5,771.04
  4. Step 4: Simplify right side
    13,671.60x = 118,254,149.80
  5. Step 5: Solve for x
    x = 118,254,149.80/13,671.60
  6. Step 6: Final answer
    x = 8,649.62

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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.