Home / 8,439.05-11,645.22-4,902.49

Finding the Fourth Proportional to 8,439.05, 11,645.22 and 4,902.49

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Solution

The fourth proportional to 8,439.05, 11,645.22 and 4,902.49 is: 6,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.05 : 11,645.22 = 4,902.49 : x
  2. Step 2: Convert to fraction form
    8,439.05/11,645.22 = 4,902.49/x
  3. Step 3: Cross multiply
    8,439.05x = 11,645.22 × 4,902.49
  4. Step 4: Simplify right side
    8,439.05x = 57,090,579.96
  5. Step 5: Solve for x
    x = 57,090,579.96/8,439.05
  6. Step 6: Final answer
    x = 6,765.05

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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.