Home / 13,665.75-20,507.18-5,874.54

Finding the Fourth Proportional to 13,665.75, 20,507.18 and 5,874.54

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Solution

The fourth proportional to 13,665.75, 20,507.18 and 5,874.54 is: 8,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.75 : 20,507.18 = 5,874.54 : x
  2. Step 2: Convert to fraction form
    13,665.75/20,507.18 = 5,874.54/x
  3. Step 3: Cross multiply
    13,665.75x = 20,507.18 × 5,874.54
  4. Step 4: Simplify right side
    13,665.75x = 120,470,219.82
  5. Step 5: Solve for x
    x = 120,470,219.82/13,665.75
  6. Step 6: Final answer
    x = 8,815.49

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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.