Home / 13,485.57-20,229.05-4,127.01

Finding the Fourth Proportional to 13,485.57, 20,229.05 and 4,127.01

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Solution

The fourth proportional to 13,485.57, 20,229.05 and 4,127.01 is: 6,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.57 : 20,229.05 = 4,127.01 : x
  2. Step 2: Convert to fraction form
    13,485.57/20,229.05 = 4,127.01/x
  3. Step 3: Cross multiply
    13,485.57x = 20,229.05 × 4,127.01
  4. Step 4: Simplify right side
    13,485.57x = 83,485,491.64
  5. Step 5: Solve for x
    x = 83,485,491.64/13,485.57
  6. Step 6: Final answer
    x = 6,190.73

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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.