Home / 13,664.75-20,500.37-4,430.75

Finding the Fourth Proportional to 13,664.75, 20,500.37 and 4,430.75

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Solution

The fourth proportional to 13,664.75, 20,500.37 and 4,430.75 is: 6,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.75 : 20,500.37 = 4,430.75 : x
  2. Step 2: Convert to fraction form
    13,664.75/20,500.37 = 4,430.75/x
  3. Step 3: Cross multiply
    13,664.75x = 20,500.37 × 4,430.75
  4. Step 4: Simplify right side
    13,664.75x = 90,832,014.38
  5. Step 5: Solve for x
    x = 90,832,014.38/13,664.75
  6. Step 6: Final answer
    x = 6,647.18

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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.