Home / 13,711.79-20,563.43-4,945.56

Finding the Fourth Proportional to 13,711.79, 20,563.43 and 4,945.56

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Solution

The fourth proportional to 13,711.79, 20,563.43 and 4,945.56 is: 7,416.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.79 : 20,563.43 = 4,945.56 : x
  2. Step 2: Convert to fraction form
    13,711.79/20,563.43 = 4,945.56/x
  3. Step 3: Cross multiply
    13,711.79x = 20,563.43 × 4,945.56
  4. Step 4: Simplify right side
    13,711.79x = 101,697,652.14
  5. Step 5: Solve for x
    x = 101,697,652.14/13,711.79
  6. Step 6: Final answer
    x = 7,416.81

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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.