Home / 13,759.26-20,638.89-5,545.50

Finding the Fourth Proportional to 13,759.26, 20,638.89 and 5,545.50

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Solution

The fourth proportional to 13,759.26, 20,638.89 and 5,545.50 is: 8,318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759.26 : 20,638.89 = 5,545.50 : x
  2. Step 2: Convert to fraction form
    13,759.26/20,638.89 = 5,545.50/x
  3. Step 3: Cross multiply
    13,759.26x = 20,638.89 × 5,545.50
  4. Step 4: Simplify right side
    13,759.26x = 114,452,964.50
  5. Step 5: Solve for x
    x = 114,452,964.50/13,759.26
  6. Step 6: Final answer
    x = 8,318.25

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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.