Home / 13,645.75-20,475.11-4,411.75

Finding the Fourth Proportional to 13,645.75, 20,475.11 and 4,411.75

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Solution

The fourth proportional to 13,645.75, 20,475.11 and 4,411.75 is: 6,619.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.75 : 20,475.11 = 4,411.75 : x
  2. Step 2: Convert to fraction form
    13,645.75/20,475.11 = 4,411.75/x
  3. Step 3: Cross multiply
    13,645.75x = 20,475.11 × 4,411.75
  4. Step 4: Simplify right side
    13,645.75x = 90,331,066.54
  5. Step 5: Solve for x
    x = 90,331,066.54/13,645.75
  6. Step 6: Final answer
    x = 6,619.72

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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.