Home / 13,230.24-19,857.60-5,439.60

Finding the Fourth Proportional to 13,230.24, 19,857.60 and 5,439.60

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Solution

The fourth proportional to 13,230.24, 19,857.60 and 5,439.60 is: 8,164.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.24 : 19,857.60 = 5,439.60 : x
  2. Step 2: Convert to fraction form
    13,230.24/19,857.60 = 5,439.60/x
  3. Step 3: Cross multiply
    13,230.24x = 19,857.60 × 5,439.60
  4. Step 4: Simplify right side
    13,230.24x = 108,017,400.96
  5. Step 5: Solve for x
    x = 108,017,400.96/13,230.24
  6. Step 6: Final answer
    x = 8,164.43

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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.