Home / 13,711.77-20,563.40-4,945.55

Finding the Fourth Proportional to 13,711.77, 20,563.40 and 4,945.55

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Solution

The fourth proportional to 13,711.77, 20,563.40 and 4,945.55 is: 7,416.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.77 : 20,563.40 = 4,945.55 : x
  2. Step 2: Convert to fraction form
    13,711.77/20,563.40 = 4,945.55/x
  3. Step 3: Cross multiply
    13,711.77x = 20,563.40 × 4,945.55
  4. Step 4: Simplify right side
    13,711.77x = 101,697,232.42
  5. Step 5: Solve for x
    x = 101,697,232.42/13,711.77
  6. Step 6: Final answer
    x = 7,416.78

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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.