Home / 13,014.80-19,540.20-8,363.60

Finding the Fourth Proportional to 13,014.80, 19,540.20 and 8,363.60

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Solution

The fourth proportional to 13,014.80, 19,540.20 and 8,363.60 is: 12,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,014.80 : 19,540.20 = 8,363.60 : x
  2. Step 2: Convert to fraction form
    13,014.80/19,540.20 = 8,363.60/x
  3. Step 3: Cross multiply
    13,014.80x = 19,540.20 × 8,363.60
  4. Step 4: Simplify right side
    13,014.80x = 163,426,416.72
  5. Step 5: Solve for x
    x = 163,426,416.72/13,014.80
  6. Step 6: Final answer
    x = 12,556.97

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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.