Home / 13,630.98-20,439.80-5,624.26

Finding the Fourth Proportional to 13,630.98, 20,439.80 and 5,624.26

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Solution

The fourth proportional to 13,630.98, 20,439.80 and 5,624.26 is: 8,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.98 : 20,439.80 = 5,624.26 : x
  2. Step 2: Convert to fraction form
    13,630.98/20,439.80 = 5,624.26/x
  3. Step 3: Cross multiply
    13,630.98x = 20,439.80 × 5,624.26
  4. Step 4: Simplify right side
    13,630.98x = 114,958,749.55
  5. Step 5: Solve for x
    x = 114,958,749.55/13,630.98
  6. Step 6: Final answer
    x = 8,433.64

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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.