Home / 8,439.05-11,645.75-4,662.37

Finding the Fourth Proportional to 8,439.05, 11,645.75 and 4,662.37

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Solution

The fourth proportional to 8,439.05, 11,645.75 and 4,662.37 is: 6,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.05 : 11,645.75 = 4,662.37 : x
  2. Step 2: Convert to fraction form
    8,439.05/11,645.75 = 4,662.37/x
  3. Step 3: Cross multiply
    8,439.05x = 11,645.75 × 4,662.37
  4. Step 4: Simplify right side
    8,439.05x = 54,296,795.41
  5. Step 5: Solve for x
    x = 54,296,795.41/8,439.05
  6. Step 6: Final answer
    x = 6,434.00

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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.