Home / 13,616.60-20,403.30-8,994.20

Finding the Fourth Proportional to 13,616.60, 20,403.30 and 8,994.20

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Solution

The fourth proportional to 13,616.60, 20,403.30 and 8,994.20 is: 13,477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.60 : 20,403.30 = 8,994.20 : x
  2. Step 2: Convert to fraction form
    13,616.60/20,403.30 = 8,994.20/x
  3. Step 3: Cross multiply
    13,616.60x = 20,403.30 × 8,994.20
  4. Step 4: Simplify right side
    13,616.60x = 183,511,360.86
  5. Step 5: Solve for x
    x = 183,511,360.86/13,616.60
  6. Step 6: Final answer
    x = 13,477.03

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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.