Home / 13,770.04-20,604.03-8,226.40

Finding the Fourth Proportional to 13,770.04, 20,604.03 and 8,226.40

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Solution

The fourth proportional to 13,770.04, 20,604.03 and 8,226.40 is: 12,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.04 : 20,604.03 = 8,226.40 : x
  2. Step 2: Convert to fraction form
    13,770.04/20,604.03 = 8,226.40/x
  3. Step 3: Cross multiply
    13,770.04x = 20,604.03 × 8,226.40
  4. Step 4: Simplify right side
    13,770.04x = 169,496,992.39
  5. Step 5: Solve for x
    x = 169,496,992.39/13,770.04
  6. Step 6: Final answer
    x = 12,309.11

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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.