Home / 13,512.90-20,269.35-8,847.30

Finding the Fourth Proportional to 13,512.90, 20,269.35 and 8,847.30

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Solution

The fourth proportional to 13,512.90, 20,269.35 and 8,847.30 is: 13,270.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.90 : 20,269.35 = 8,847.30 : x
  2. Step 2: Convert to fraction form
    13,512.90/20,269.35 = 8,847.30/x
  3. Step 3: Cross multiply
    13,512.90x = 20,269.35 × 8,847.30
  4. Step 4: Simplify right side
    13,512.90x = 179,329,020.26
  5. Step 5: Solve for x
    x = 179,329,020.26/13,512.90
  6. Step 6: Final answer
    x = 13,270.95

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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.