Home / 9,179.10-13,770.09-5,485.50

Finding the Fourth Proportional to 9,179.10, 13,770.09 and 5,485.50

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Solution

The fourth proportional to 9,179.10, 13,770.09 and 5,485.50 is: 8,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.10 : 13,770.09 = 5,485.50 : x
  2. Step 2: Convert to fraction form
    9,179.10/13,770.09 = 5,485.50/x
  3. Step 3: Cross multiply
    9,179.10x = 13,770.09 × 5,485.50
  4. Step 4: Simplify right side
    9,179.10x = 75,535,828.70
  5. Step 5: Solve for x
    x = 75,535,828.70/9,179.10
  6. Step 6: Final answer
    x = 8,229.11

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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.