Home / 10,449.90-14,406.20-8,850.15

Finding the Fourth Proportional to 10,449.90, 14,406.20 and 8,850.15

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Solution

The fourth proportional to 10,449.90, 14,406.20 and 8,850.15 is: 12,200.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.90 : 14,406.20 = 8,850.15 : x
  2. Step 2: Convert to fraction form
    10,449.90/14,406.20 = 8,850.15/x
  3. Step 3: Cross multiply
    10,449.90x = 14,406.20 × 8,850.15
  4. Step 4: Simplify right side
    10,449.90x = 127,496,986.68
  5. Step 5: Solve for x
    x = 127,496,986.68/10,449.90
  6. Step 6: Final answer
    x = 12,200.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.