Home / 10,372.80-15,559.20-3,446.40

Finding the Fourth Proportional to 10,372.80, 15,559.20 and 3,446.40

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Solution

The fourth proportional to 10,372.80, 15,559.20 and 3,446.40 is: 5,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.80 : 15,559.20 = 3,446.40 : x
  2. Step 2: Convert to fraction form
    10,372.80/15,559.20 = 3,446.40/x
  3. Step 3: Cross multiply
    10,372.80x = 15,559.20 × 3,446.40
  4. Step 4: Simplify right side
    10,372.80x = 53,623,226.88
  5. Step 5: Solve for x
    x = 53,623,226.88/10,372.80
  6. Step 6: Final answer
    x = 5,169.60

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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.