Home / 10,770.80-16,149.58-4,189.32

Finding the Fourth Proportional to 10,770.80, 16,149.58 and 4,189.32

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Solution

The fourth proportional to 10,770.80, 16,149.58 and 4,189.32 is: 6,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,770.80 : 16,149.58 = 4,189.32 : x
  2. Step 2: Convert to fraction form
    10,770.80/16,149.58 = 4,189.32/x
  3. Step 3: Cross multiply
    10,770.80x = 16,149.58 × 4,189.32
  4. Step 4: Simplify right side
    10,770.80x = 67,655,758.49
  5. Step 5: Solve for x
    x = 67,655,758.49/10,770.80
  6. Step 6: Final answer
    x = 6,281.41

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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.