Home / 13,416.10-20,124.15-12,847.30

Finding the Fourth Proportional to 13,416.10, 20,124.15 and 12,847.30

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Solution

The fourth proportional to 13,416.10, 20,124.15 and 12,847.30 is: 19,270.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.10 : 20,124.15 = 12,847.30 : x
  2. Step 2: Convert to fraction form
    13,416.10/20,124.15 = 12,847.30/x
  3. Step 3: Cross multiply
    13,416.10x = 20,124.15 × 12,847.30
  4. Step 4: Simplify right side
    13,416.10x = 258,540,992.30
  5. Step 5: Solve for x
    x = 258,540,992.30/13,416.10
  6. Step 6: Final answer
    x = 19,270.95

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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.