Home / 11,850.20-17,775.30-9,920.60

Finding the Fourth Proportional to 11,850.20, 17,775.30 and 9,920.60

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Solution

The fourth proportional to 11,850.20, 17,775.30 and 9,920.60 is: 14,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,850.20 : 17,775.30 = 9,920.60 : x
  2. Step 2: Convert to fraction form
    11,850.20/17,775.30 = 9,920.60/x
  3. Step 3: Cross multiply
    11,850.20x = 17,775.30 × 9,920.60
  4. Step 4: Simplify right side
    11,850.20x = 176,341,641.18
  5. Step 5: Solve for x
    x = 176,341,641.18/11,850.20
  6. Step 6: Final answer
    x = 14,880.90

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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.