Home / 13,947.21-20,919.75-4,587.54

Finding the Fourth Proportional to 13,947.21, 20,919.75 and 4,587.54

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Solution

The fourth proportional to 13,947.21, 20,919.75 and 4,587.54 is: 6,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.21 : 20,919.75 = 4,587.54 : x
  2. Step 2: Convert to fraction form
    13,947.21/20,919.75 = 4,587.54/x
  3. Step 3: Cross multiply
    13,947.21x = 20,919.75 × 4,587.54
  4. Step 4: Simplify right side
    13,947.21x = 95,970,189.92
  5. Step 5: Solve for x
    x = 95,970,189.92/13,947.21
  6. Step 6: Final answer
    x = 6,880.96

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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.