Home / 13,469.40-20,204.10-4,705.20

Finding the Fourth Proportional to 13,469.40, 20,204.10 and 4,705.20

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Solution

The fourth proportional to 13,469.40, 20,204.10 and 4,705.20 is: 7,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.40 : 20,204.10 = 4,705.20 : x
  2. Step 2: Convert to fraction form
    13,469.40/20,204.10 = 4,705.20/x
  3. Step 3: Cross multiply
    13,469.40x = 20,204.10 × 4,705.20
  4. Step 4: Simplify right side
    13,469.40x = 95,064,331.32
  5. Step 5: Solve for x
    x = 95,064,331.32/13,469.40
  6. Step 6: Final answer
    x = 7,057.80

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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.