Home / 11,105.20-15,325.38-6,069.64

Finding the Fourth Proportional to 11,105.20, 15,325.38 and 6,069.64

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Solution

The fourth proportional to 11,105.20, 15,325.38 and 6,069.64 is: 8,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.20 : 15,325.38 = 6,069.64 : x
  2. Step 2: Convert to fraction form
    11,105.20/15,325.38 = 6,069.64/x
  3. Step 3: Cross multiply
    11,105.20x = 15,325.38 × 6,069.64
  4. Step 4: Simplify right side
    11,105.20x = 93,019,539.46
  5. Step 5: Solve for x
    x = 93,019,539.46/11,105.20
  6. Step 6: Final answer
    x = 8,376.21

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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.