Home / 13,945.81-20,921.91-4,586.44

Finding the Fourth Proportional to 13,945.81, 20,921.91 and 4,586.44

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Solution

The fourth proportional to 13,945.81, 20,921.91 and 4,586.44 is: 6,880.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.81 : 20,921.91 = 4,586.44 : x
  2. Step 2: Convert to fraction form
    13,945.81/20,921.91 = 4,586.44/x
  3. Step 3: Cross multiply
    13,945.81x = 20,921.91 × 4,586.44
  4. Step 4: Simplify right side
    13,945.81x = 95,957,084.90
  5. Step 5: Solve for x
    x = 95,957,084.90/13,945.81
  6. Step 6: Final answer
    x = 6,880.71

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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.