Home / 13,641.50-20,462.25-5,439.26

Finding the Fourth Proportional to 13,641.50, 20,462.25 and 5,439.26

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Solution

The fourth proportional to 13,641.50, 20,462.25 and 5,439.26 is: 8,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.50 : 20,462.25 = 5,439.26 : x
  2. Step 2: Convert to fraction form
    13,641.50/20,462.25 = 5,439.26/x
  3. Step 3: Cross multiply
    13,641.50x = 20,462.25 × 5,439.26
  4. Step 4: Simplify right side
    13,641.50x = 111,299,497.94
  5. Step 5: Solve for x
    x = 111,299,497.94/13,641.50
  6. Step 6: Final answer
    x = 8,158.89

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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.