Home / 7,380.23-11,073.60-3,869.40

Finding the Fourth Proportional to 7,380.23, 11,073.60 and 3,869.40

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Solution

The fourth proportional to 7,380.23, 11,073.60 and 3,869.40 is: 5,805.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.23 : 11,073.60 = 3,869.40 : x
  2. Step 2: Convert to fraction form
    7,380.23/11,073.60 = 3,869.40/x
  3. Step 3: Cross multiply
    7,380.23x = 11,073.60 × 3,869.40
  4. Step 4: Simplify right side
    7,380.23x = 42,848,187.84
  5. Step 5: Solve for x
    x = 42,848,187.84/7,380.23
  6. Step 6: Final answer
    x = 5,805.81

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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.