Home / 8,339.24-11,507.36-5,645.00

Finding the Fourth Proportional to 8,339.24, 11,507.36 and 5,645.00

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Solution

The fourth proportional to 8,339.24, 11,507.36 and 5,645.00 is: 7,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.24 : 11,507.36 = 5,645.00 : x
  2. Step 2: Convert to fraction form
    8,339.24/11,507.36 = 5,645.00/x
  3. Step 3: Cross multiply
    8,339.24x = 11,507.36 × 5,645.00
  4. Step 4: Simplify right side
    8,339.24x = 64,958,961.44
  5. Step 5: Solve for x
    x = 64,958,961.44/8,339.24
  6. Step 6: Final answer
    x = 7,789.56

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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.