Home / 6,999.24-9,659.16-3,855.36

Finding the Fourth Proportional to 6,999.24, 9,659.16 and 3,855.36

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Solution

The fourth proportional to 6,999.24, 9,659.16 and 3,855.36 is: 5,320.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.24 : 9,659.16 = 3,855.36 : x
  2. Step 2: Convert to fraction form
    6,999.24/9,659.16 = 3,855.36/x
  3. Step 3: Cross multiply
    6,999.24x = 9,659.16 × 3,855.36
  4. Step 4: Simplify right side
    6,999.24x = 37,239,539.10
  5. Step 5: Solve for x
    x = 37,239,539.10/6,999.24
  6. Step 6: Final answer
    x = 5,320.51

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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.