Home / 13,255.20-19,883.68-4,487.12

Finding the Fourth Proportional to 13,255.20, 19,883.68 and 4,487.12

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Solution

The fourth proportional to 13,255.20, 19,883.68 and 4,487.12 is: 6,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.20 : 19,883.68 = 4,487.12 : x
  2. Step 2: Convert to fraction form
    13,255.20/19,883.68 = 4,487.12/x
  3. Step 3: Cross multiply
    13,255.20x = 19,883.68 × 4,487.12
  4. Step 4: Simplify right side
    13,255.20x = 89,220,458.20
  5. Step 5: Solve for x
    x = 89,220,458.20/13,255.20
  6. Step 6: Final answer
    x = 6,730.98

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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.