Home / 13,409.28-20,127.42-5,623.56

Finding the Fourth Proportional to 13,409.28, 20,127.42 and 5,623.56

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Solution

The fourth proportional to 13,409.28, 20,127.42 and 5,623.56 is: 8,441.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.28 : 20,127.42 = 5,623.56 : x
  2. Step 2: Convert to fraction form
    13,409.28/20,127.42 = 5,623.56/x
  3. Step 3: Cross multiply
    13,409.28x = 20,127.42 × 5,623.56
  4. Step 4: Simplify right side
    13,409.28x = 113,187,754.02
  5. Step 5: Solve for x
    x = 113,187,754.02/13,409.28
  6. Step 6: Final answer
    x = 8,441.00

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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.