Home / 13,506.50-20,259.66-3,511.28

Finding the Fourth Proportional to 13,506.50, 20,259.66 and 3,511.28

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Solution

The fourth proportional to 13,506.50, 20,259.66 and 3,511.28 is: 5,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.50 : 20,259.66 = 3,511.28 : x
  2. Step 2: Convert to fraction form
    13,506.50/20,259.66 = 3,511.28/x
  3. Step 3: Cross multiply
    13,506.50x = 20,259.66 × 3,511.28
  4. Step 4: Simplify right side
    13,506.50x = 71,137,402.78
  5. Step 5: Solve for x
    x = 71,137,402.78/13,506.50
  6. Step 6: Final answer
    x = 5,266.90

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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.