Home / 10,958.10-16,412.85-4,380.90

Finding the Fourth Proportional to 10,958.10, 16,412.85 and 4,380.90

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Solution

The fourth proportional to 10,958.10, 16,412.85 and 4,380.90 is: 6,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.10 : 16,412.85 = 4,380.90 : x
  2. Step 2: Convert to fraction form
    10,958.10/16,412.85 = 4,380.90/x
  3. Step 3: Cross multiply
    10,958.10x = 16,412.85 × 4,380.90
  4. Step 4: Simplify right side
    10,958.10x = 71,903,054.57
  5. Step 5: Solve for x
    x = 71,903,054.57/10,958.10
  6. Step 6: Final answer
    x = 6,561.64

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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.