Home / 7,485.31-11,231.20-4,018.51

Finding the Fourth Proportional to 7,485.31, 11,231.20 and 4,018.51

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Solution

The fourth proportional to 7,485.31, 11,231.20 and 4,018.51 is: 6,029.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.31 : 11,231.20 = 4,018.51 : x
  2. Step 2: Convert to fraction form
    7,485.31/11,231.20 = 4,018.51/x
  3. Step 3: Cross multiply
    7,485.31x = 11,231.20 × 4,018.51
  4. Step 4: Simplify right side
    7,485.31x = 45,132,633.36
  5. Step 5: Solve for x
    x = 45,132,633.36/7,485.31
  6. Step 6: Final answer
    x = 6,029.50

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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.