Home / 13,439.60-20,166.60-5,649.20

Finding the Fourth Proportional to 13,439.60, 20,166.60 and 5,649.20

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Solution

The fourth proportional to 13,439.60, 20,166.60 and 5,649.20 is: 8,476.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.60 : 20,166.60 = 5,649.20 : x
  2. Step 2: Convert to fraction form
    13,439.60/20,166.60 = 5,649.20/x
  3. Step 3: Cross multiply
    13,439.60x = 20,166.60 × 5,649.20
  4. Step 4: Simplify right side
    13,439.60x = 113,925,156.72
  5. Step 5: Solve for x
    x = 113,925,156.72/13,439.60
  6. Step 6: Final answer
    x = 8,476.83

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1.5x scale

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.