Home / 13,620.24-20,439.26-5,829.66

Finding the Fourth Proportional to 13,620.24, 20,439.26 and 5,829.66

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Solution

The fourth proportional to 13,620.24, 20,439.26 and 5,829.66 is: 8,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.24 : 20,439.26 = 5,829.66 : x
  2. Step 2: Convert to fraction form
    13,620.24/20,439.26 = 5,829.66/x
  3. Step 3: Cross multiply
    13,620.24x = 20,439.26 × 5,829.66
  4. Step 4: Simplify right side
    13,620.24x = 119,153,936.45
  5. Step 5: Solve for x
    x = 119,153,936.45/13,620.24
  6. Step 6: Final answer
    x = 8,748.30

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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.